View Compilation Error

0_0_25592911_30750.cpp: In function 'int main()':
0_0_25592911_30750.cpp:83:25: error: 'j' was not declared in this scope
         rep(i,1,n) frep(j,i,n+1) mp[i][j] = mp[j][i] = INF;
                         ^
0_0_25592911_30750.cpp:83:32: error: 'frep' was not declared in this scope
         rep(i,1,n) frep(j,i,n+1) mp[i][j] = mp[j][i] = INF;
                                ^