3117.txt

北大ACM题目例程 详细的解答过程 程序实现 算法分析

Source

Problem Id:3117  User Id:fzk 
Memory:24K  Time:0MS
Language:C++  Result:Accepted

Source 

#include <stdio.h>

int m[1000];

int main( ) {
	int t, n, m, i, a;
	while( 1 ) {
		scanf( "%d%d", &t, &n );
		if( t == 0 && n == 0 )
			break;
		m = 0;
		for( i=0; i<t; i++ ) {
			scanf( "%*s %d", &a );
			m += a;
		}

		printf( "%d\n", 3*n-m );
	}
	return 0;
}