贪心POJ3253

/**
*@ author StormMaybin
*@ date 2016-09-27
*/

生命不息,奋斗不止!

题目分析

Fence Repair
Time Limit: 2000MS Memory Limit: 65536K
Total Submissions: 41139 Accepted: 13409

Description

Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000) planks of wood, each having some integer length Li (1 ≤ Li ≤ 50,000) units. He then purchases a single long board just long enough to saw into the N planks (i.e., whose length is the sum of the lengths Li). FJ is ignoring the “kerf”, the extra length lost to sawdust when a sawcut is made; you should ignore it, too.

FJ sadly realizes that he doesn’t own a saw with which to cut the wood, so he mosies over to Farmer Don’s Farm with this long board and politely asks if he may borrow a saw.