Problem A. Store Credit 第一道练习题~~

一开始不知道怎么提交，纠结了我好久哦，后来才发现是提交outpur file就行的了

它的输入还有去上面下！！！！

#include<iostream> using namespace std; int main() { int ncase; int c; int I; int i,j; int ie[2010]; int walk = 0; int flag; FILE *in,*out; in = freopen("A-large-practice.in","r",stdin); out = freopen("A-large.txt","w",stdout); cin >> ncase; while(ncase--){ cin >> c >> I; for(i = 0;i < I;i++) cin >> ie[i]; flag = 0; for(i = 0;i < I;i++){ for(j = 0;j < I;j++){ if(ie[i]+ie[j] == c && i!=j){ flag = 1;break; } } if(flag) break; } if(i > j){ i ^= j;j ^= i;i ^= j; } cout << "Case #" << ++walk <<": "<< i+1 << ' ' << j+1 <<endl; } fclose(in); fclose(out); return 0; }