View Compilation Error

0_0_26473212_3759.cpp: In function 'int main()':
0_0_26473212_3759.cpp:116:4: error: 'minn' was not declared in this scope
    minn=min(minn,v);
    ^
0_0_26473212_3759.cpp:117:4: error: 'maxx' was not declared in this scope
    maxx=max(maxx,w);
    ^
0_0_26473212_3759.cpp:122:13: error: 'minn' was not declared in this scope
   for(int j=minn;j<=maxx;j++)Task.Addedge(j,501+n,m);
             ^
0_0_26473212_3759.cpp:122:21: error: 'maxx' was not declared in this scope
   for(int j=minn;j<=maxx;j++)Task.Addedge(j,501+n,m);
                     ^