Eroare de compilare: main.cpp: In function 'void solve(int, int)': main.cpp:22:30: error: lvalue required as increment operand if( (++ap[v[k][j]]) == 1) ^ main.cpp:24:50: error: lvalue required as increment operand for(int k=j-t; k<=j; ++k) if(++ap[v[i][k]]==1) ++nr; ^ main.cpp:29:58: error: lvalue required as decrement operand for(int k=i-t+1; k<=i; ++k) if(--ap[v[k][j-t]]==0) --nr; ^ main.cpp:30:56: error: lvalue required as decrement operand for(int k=j-t; k<=j; ++k) if(--ap[v[i-t][k]]==0) --nr; ^ main.cpp:32:9: error: 'ans' was not declared in this scope ans=max(ans,t); ^~~ Non zero exit status: 1