Compilare: main.cpp: In function 'int main()': main.cpp:47:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muc>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int i=0;i<v.size();i++){ | ~^~~~~~~~~ main.cpp:82:25: warning: 'py' may be used uninitialized [-Wmaybe-uninitialized] 82 | a[y][py]=a[py][y]=0; | ~~~~~~~~^~~~~~~~~~~ main.cpp:58:34: note: 'py' was declared here 58 | int x,y,c,mxx=0,mxy=0,px,py; | ^~ main.cpp:74:25: warning: 'px' may be used uninitialized [-Wmaybe-uninitialized] 74 | a[x][px]=a[px][x]=0; | ~~~~~~~~^~~~~~~~~~~ main.cpp:58:31: note: 'px' was declared here 58 | int x,y,c,mxx=0,mxy=0,px,py; | ^~