Compilare: user.cpp: In function ‘int main()’: user.cpp:131:31: warning: suggest parentheses around assignment used as truth value [-Wparentheses] initVis[i][j] = h[i][j] = low[i][j] = whichComp[i][j] = 0; ^ user.cpp: In function ‘std::pair<int, int> findReal(int, int, int, int)’: user.cpp:61:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:174:21: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (mat[l][c] == 'B' || vis[l][c][0] || vis[l][c][1] || vis[l][c][2] || vis[l][c][3]) ^ user.cpp:174:21: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized]