1998 IMO Problem #4

2024/06/1605:26:05 hotcomm 6892

1998 IMO Problem #4 - DayDayNews

1998 IMO Problem #4 - DayDayNews

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The recent drama in the British political arena has further stirred global nerves as the chaos in Europe continues. Following the "avalanche" resignation of dozens of British cabinet members in one day, British Prime Minister Johnson finally announced his resignation as leader of - DayDayNews

The recent drama in the British political arena has further stirred global nerves as the chaos in Europe continues. Following the "avalanche" resignation of dozens of British cabinet members in one day, British Prime Minister Johnson finally announced his resignation as leader of

One word: chaos! The chaos in Britain may be just a harbinger of chaos in the West

06/22 1382

After the conflict between Russia and Ukraine broke out, there has always been a "controversial" question: Who is Ukraine fighting for? Kyiv almost obeys the "instructions" of the West, but from time to time it accuses the West of slow aid and even ridicules European countries. T - DayDayNews

After the conflict between Russia and Ukraine broke out, there has always been a "controversial" question: Who is Ukraine fighting for? Kyiv almost obeys the "instructions" of the West, but from time to time it accuses the West of slow aid and even ridicules European countries. T

Who is Ukraine fighting for? The Ukrainian army repeatedly massacred civilians, including a 10-year-old child

06/22 1275

According to Zelensky, the Russian and Ukrainian armies are currently exchanging fire. Hundreds of thousands of troops from the two countries are engaged in a fierce life-and-death battle on the contact line that is thousands of kilometers long. He prays that Western countries ca - DayDayNews

According to Zelensky, the Russian and Ukrainian armies are currently exchanging fire. Hundreds of thousands of troops from the two countries are engaged in a fierce life-and-death battle on the contact line that is thousands of kilometers long. He prays that Western countries ca

Russia's general offensive has officially begun. Hundreds of thousands of troops are fighting to the death, and large numbers of civilians are fleeing in panic.

06/22 1995

During this period, a series of farces and tragedies occurred in the world. First, Johnson was jointly "forced into the palace" and had no choice but to withdraw from British politics. Then, Abe was assassinated, and the whole country in Japan mourned. - DayDayNews

During this period, a series of farces and tragedies occurred in the world. First, Johnson was jointly "forced into the palace" and had no choice but to withdraw from British politics. Then, Abe was assassinated, and the whole country in Japan mourned.

There are new variables in the war, Russia is preparing to retaliate against Lithuania, and the former German Prime Minister may return to action

06/21 1616

Only a week after the Russian army captured Severodonetsk, it captured Lisichansk. By now, most of the Donbass had been separated from Ukrainian control. According to Russia, once Donbass is captured, the second phase of the Russian special military operation will be completed, a - DayDayNews

Only a week after the Russian army captured Severodonetsk, it captured Lisichansk. By now, most of the Donbass had been separated from Ukrainian control. According to Russia, once Donbass is captured, the second phase of the Russian special military operation will be completed, a

Zelensky and the military have "internal strife", the former president of Ukraine: let the people decide whether it is war or peace

06/21 1743

From 7:48 to 11:12 that night, the Blue Moon, Blood Moon and Super Moon will appear simultaneously, performing a rare astronomical spectacle in 152 years. Also known as the "Super Moon Trilogy", it is a rare astronomical spectacle consisting of a super moon, a blue moon and a tot - DayDayNews

From 7:48 to 11:12 that night, the Blue Moon, Blood Moon and Super Moon will appear simultaneously, performing a rare astronomical spectacle in 152 years. Also known as the "Super Moon Trilogy", it is a rare astronomical spectacle consisting of a super moon, a blue moon and a tot

You can only see it once in a lifetime: the "Super Blue Blood Moon" takes place today after 152 years!

06/22 1314

The Nanying Planetarium in Taiwan points out that Mars will reach an "opposition" position about every 2 years and 49 days. However, since the orbits of the Earth and Mars are both elliptical, the distance between the Earth and Mars is different every time Mars opposes it. , and - DayDayNews

The Nanying Planetarium in Taiwan points out that Mars will reach an "opposition" position about every 2 years and 49 days. However, since the orbits of the Earth and Mars are both elliptical, the distance between the Earth and Mars is different every time Mars opposes it. , and

Mars will be "close" tomorrow. If you miss it, you will have to wait another 15 years to see it so bright.

06/22 1841

According to CCTV financial news, international oil prices fell sharply yesterday, with US oil falling by more than 6.8%. Affected by the interest rate hikes by many central banks around the world, investors' focus shifted from the supply and demand pattern to the risk of economi - DayDayNews

According to CCTV financial news, international oil prices fell sharply yesterday, with US oil falling by more than 6.8%. Affected by the interest rate hikes by many central banks around the world, investors' focus shifted from the supply and demand pattern to the risk of economi

Sudden sharp drop! Is the second cut this year coming?

06/22 1735

Honeysuckle, the second crop of flower production is about to end, the quality of the current output has declined, merchants' purchasing intensity has weakened, and the market has declined slightly. The current price of Hebei fully inspected goods in Bozhou market is 153 yuan, an - DayDayNews

Honeysuckle, the second crop of flower production is about to end, the quality of the current output has declined, merchants' purchasing intensity has weakened, and the market has declined slightly. The current price of Hebei fully inspected goods in Bozhou market is 153 yuan, an

Today’s medicinal materials market: honeysuckle, earthworm, mugwort, gastrodia, platycodon, schisandra, achyranthes, Corydalis, and atractylodes.

06/22 1454

After British Prime Minister Boris Johnson announced his resignation as leader and prime minister of the ruling Conservative Party, many members of the Conservative Party announced their candidacy for party leadership on the 8th and 9th. British media reported that the Conservati - DayDayNews

After British Prime Minister Boris Johnson announced his resignation as leader and prime minister of the ruling Conservative Party, many members of the Conservative Party announced their candidacy for party leadership on the 8th and 9th. British media reported that the Conservati

The battle for the new British Prime Minister begins, with many people joining the race

06/22 1963

As time goes by, this protracted Russian-Ukrainian conflict has entered its 138th day. The war is still rising, and the war situation is constantly ushering in new variables. - DayDayNews

As time goes by, this protracted Russian-Ukrainian conflict has entered its 138th day. The war is still rising, and the war situation is constantly ushering in new variables.

The war ushered in changes. The Ukrainian army defeated the Russian offensive with the help of the "Supervisory Team", and the United States gave Russia and Germany a "big gift"

06/22 1095

The conflict between Russia and Ukraine has entered its 141st day. Russia and Ukraine have launched fierce shelling over the territory of Donetsk and Kherson. According to news released by the Russian army, the Ukrainian army launched a new attack on the Kherson area controlled b - DayDayNews

The conflict between Russia and Ukraine has entered its 141st day. Russia and Ukraine have launched fierce shelling over the territory of Donetsk and Kherson. According to news released by the Russian army, the Ukrainian army launched a new attack on the Kherson area controlled b

On the 141st day of the Russia-Ukraine conflict, three more major events occurred. Zelensky said that Russia’s defeat has been determined.

06/22 1559

The war in Donbass has now entered the final stage. Russia has achieved overwhelming results. Ukraine is very anxious and the West is also very anxious. In recent times, the two most common actions of Ukrainian President Zelenskiy are to act harshly. While asking for help from th - DayDayNews

The war in Donbass has now entered the final stage. Russia has achieved overwhelming results. Ukraine is very anxious and the West is also very anxious. In recent times, the two most common actions of Ukrainian President Zelenskiy are to act harshly. While asking for help from th

In-depth analysis: The outbreak of the Russia-Ukraine conflict may be inseparable from the new crown epidemic

06/22 1049

The Ukrainian army's announcement to withdraw from the city of Severodonetsk means a cruel fact: Facing the fierce attack of the Russian army, the Ukrainian army can no longer bear the losses of the war, let alone organize effective resistance, and can only choose to retreat to s - DayDayNews

The Ukrainian army's announcement to withdraw from the city of Severodonetsk means a cruel fact: Facing the fierce attack of the Russian army, the Ukrainian army can no longer bear the losses of the war, let alone organize effective resistance, and can only choose to retreat to s

In order to avoid repeating the same mistakes, Ukraine rarely admitted defeat and ordered the Ukrainian army to retreat. Is it still too late?

06/22 1238

However, what is interesting is that Zelensky still maintains full confidence in the current battlefield situation that is completely tilted towards Russia. He believes that the winner will definitely be Ukraine if he persists like this. Podoljak, a member of the delegation, even - DayDayNews

However, what is interesting is that Zelensky still maintains full confidence in the current battlefield situation that is completely tilted towards Russia. He believes that the winner will definitely be Ukraine if he persists like this. Podoljak, a member of the delegation, even

Adviser to the President of Ukraine: The Russian army must immediately cease fire and withdraw and pay compensation. There is no way to stop the war unless all conditions are agreed.

06/22 1511

The conflict between Russia and Ukraine has entered its 28th day, four weeks ago, and the fighting continues. Outside the battlefield, conflicts between Russia and the Western camp continue. The West did not dare to send troops to join the war, but only dared to impose sanctions - DayDayNews

The conflict between Russia and Ukraine has entered its 28th day, four weeks ago, and the fighting continues. Outside the battlefield, conflicts between Russia and the Western camp continue. The West did not dare to send troops to join the war, but only dared to impose sanctions

On the 28th day of the Russia-Ukraine conflict, Putin rejected peace negotiations between Russia and Japan, and Russia also wanted to withdraw from the WTO

06/22 1651

From the establishment of the Eastern Jin Dynasty in 317 AD to the murder of Emperor Xiaowu in 396 AD, the Eastern Jin Dynasty had staggered for eighty years. Since the successor of Jin'an Emperor Sima Dezong was a complete fool, the court fell into the hands of his uncle Sima Da - DayDayNews

From the establishment of the Eastern Jin Dynasty in 317 AD to the murder of Emperor Xiaowu in 396 AD, the Eastern Jin Dynasty had staggered for eighty years. Since the successor of Jin'an Emperor Sima Dezong was a complete fool, the court fell into the hands of his uncle Sima Da

Selected Stories from the Twenty-Six Histories 257. Another stupid emperor appeared in the Eastern Jin Dynasty. He was so stupid that he couldn’t tell the difference between winter and summer.

06/22 1986

Preface: A big event happened in Wang Tianxiang’s family that day. The local county committee sent someone to bring him a notice saying: "A big leader from the central government wants to see you." Wang Tianxiang thought about it and blurted out: "Will it happen?" It’s my Big Bro - DayDayNews

Preface: A big event happened in Wang Tianxiang’s family that day. The local county committee sent someone to bring him a notice saying: "A big leader from the central government wants to see you." Wang Tianxiang thought about it and blurted out: "Will it happen?" It’s my Big Bro

In 1956, Chairman Mao’s groom Wang Tianxiang received a notice from the county party committee: The top leaders of the central government want to see you.

06/22 1878

After Japan surrendered, 110,000 Japanese women stayed in Northeast China. At the beginning of the last century, Japan had been staring at China. Especially after entering the warlord melee period, Japan gradually extended its tentacles from North Korea to the Northeast, supporti - DayDayNews

After Japan surrendered, 110,000 Japanese women stayed in Northeast China. At the beginning of the last century, Japan had been staring at China. Especially after entering the warlord melee period, Japan gradually extended its tentacles from North Korea to the Northeast, supporti

After Japan surrendered, 110,000 Japanese women stayed in Northeast China. How did they fare afterward?

06/22 1675

2021 has completely become history. From the current perspective, it can be said that the development of the tablet market in 2021 has exceeded everyone's expectations. No one thought that the tablet computer market, which was once criticized, would explode again. According to da - DayDayNews

2021 has completely become history. From the current perspective, it can be said that the development of the tablet market in 2021 has exceeded everyone's expectations. No one thought that the tablet computer market, which was once criticized, would explode again. According to da

Underrated tablets, the tablet market will regain its sovereignty

06/22 1159

This seminar invited leading figures in the field of nucleic acid drug development and research, focusing on nucleic acid drugs, covering the entire process of preclinical research on nucleic acid drugs, including drug discovery, pharmaceutical research, and preclinical research, - DayDayNews

This seminar invited leading figures in the field of nucleic acid drug development and research, focusing on nucleic acid drugs, covering the entire process of preclinical research on nucleic acid drugs, including drug discovery, pharmaceutical research, and preclinical research,

"Mei·Jiwen" focuses on the cutting-edge and goes directly to the Medicilon nucleic acid drug seminar

06/22 1239

As we all know, although humans are at the top of the food chain, our size does not have any advantage because there are so many behemoths in nature. When asked who is the largest living organism in the world, many people will answer the blue whale, but in fact, there is "someone - DayDayNews

As we all know, although humans are at the top of the food chain, our size does not have any advantage because there are so many behemoths in nature. When asked who is the largest living organism in the world, many people will answer the blue whale, but in fact, there is "someone

The largest living organism in the world: covering an area of nearly 9 square kilometers, it is still growing crazily.

06/22 1039