Another lottery

 1 #include <stdio.h>
 2 #include <string.h>
 3 #include <algorithm>
 4 #define LL __int64
 5 using namespace std;
 6 const int N=10010;
 7 LL a[N][32];
 8 LL p[N];
 9 int main()
10 {
11     int n,m;
12     while(~scanf("%d%d",&n,&m))
13     {
14         LL sum = 0;
15         if (n==0&&m==0)
16             break;
17         for (int i = 0; i < n; i++)
18         {
19             for (int j = 0; j < m; j++)
20                 {
21                     scanf("%I64d",&a[i][j]);
22                 }
23         }
24         while(!sum)
25         {
26             for (int i = 0; i < n; i++)
27             {
28                 sum+=a[i][m-1];
29                 p[i] = a[i][m-1];
30             }
31             m--;
32         }
33         for (int i = 0; i < n; i++)
34         {
35             LL temp = __gcd(sum,p[i]);
36             LL r1 = p[i]/temp;
37             LL r2 = sum/temp;
38             printf("%I64d / %I64d\n",r1,r2);
39         }
40     }
41     return 0;
42 }