View Compilation Error

0_0_30124065_20723.cpp: In function 'void dij()':
0_0_30124065_20723.cpp:35:11: error: 'inf' was not declared in this scope
   int ans=inf,x;
           ^
0_0_30124065_20723.cpp:41:5: error: 'x' was not declared in this scope
     x=j;
     ^
0_0_30124065_20723.cpp:44:7: error: 'x' was not declared in this scope
   vis[x]=1;
       ^
0_0_30124065_20723.cpp: In function 'int main()':
0_0_30124065_20723.cpp:57:16: error: 'inf' was not declared in this scope
     mapp[i][j]=inf;
                ^