百度之星程序设计大赛 J题 电梯不能停在0层,这我WA了好几次,泪崩!
View Code
1 #include<stdio.h> 2 #include<stdlib.h> 3 4 long min = 99999999; 5 int main() 6 { 7 int i,a,b,m; 8 long n,sum,x; 9 10 scanf("%ld%d",&n,&m); 11 sum = -1; 12 for(i=0; i<m; i++) 13 { 14 scanf("%d%d",&a,&b); 15 x = (n*b)/(a+b) + 1; 16 sum = (a+b)*x - n*b; 17 if(min > sum) 18 min = sum; 19 } 20 printf("%d\n",min); 21 return 0; 22 }