poj 1953 World Cup Noise
World Cup Noise Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 14753 Accepted: 7302 Description Background "KO-RE-A, KO-RE-A" shout 54.000 happy football fans after their team has reached the semifinals of the FIFA World Cup in their home country. But although their excitement is real, the Korean people are still very organized by nature. For example, they have organized huge trumpets (that sound like blowing a ship's horn) to support their team playing on the field. The fans want to keep the level of noise constant throughout the match. The trumpets are operated by compressed gas.