所以，我还是太年轻，同一逻辑用Cpp写的，过了，用C写，Output Limit Exceeded。

没过的C

////  main.c//  poj2586////  Created by 韩雪滢 on 11/27/16.//  Copyright © 2016 韩雪滢. All rights reserved.//#include 
     
      int surplus=0;int deficit=0;int result = 0;int main() {        while(scanf("%d%d",&surplus,&deficit)){                int i=0;        while(i*surplus-(5-i)*deficit < 0)            i++;        i--;                result = 2*(i*surplus+(5-i)*deficit);        if(i>=2)            result += 2*surplus;        else            result = result + i*surplus - (2-i)*deficit;                if(result>0)            printf("%d\n",result);        else            printf("Deficit\n");    }        return 0;}
     

过了的Cpp

////  main.cpp//  poj2586Cpp////  Created by 韩雪滢 on 11/27/16.//  Copyright © 2016 韩雪滢. All rights reserved.//#include 
     
      using namespace std;int main(int argc, const char * argv[]) {    int s,p;    while(cin >> s >> p){        int i=0;        while(i*s - (5-i)*p <0)            i++;        i--;        int ans = i*2*s - (5-i)*2*p;        if(i>=2)            ans += 2*s;        else            ans = ans + i*s - (2-i)*p;        if(ans > 0)            cout << ans <