Compilare: main.cpp: In function 'int32_t main()': main.cpp:49:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<std::deque<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int j=0; j<d.size(); j++) | ~^~~~~~~~~ main.cpp:59:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<std::deque<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int j=0; j<d.size(); j++) | ~^~~~~~~~~ main.cpp:71:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<std::deque<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int j=0; j<d.size(); j++) | ~^~~~~~~~~ main.cpp:74:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i=0; i<d[j].size(); i++) | ~^~~~~~~~~~~~ main.cpp:87:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int j=0; j<d[rez].size(); j++) | ~^~~~~~~~~~~~~~ main.cpp:15:17: warning: unused variable 'x' [-Wunused-variable] 15 | int cer,n,k,x=1,y=1; | ^ main.cpp:15:21: warning: unused variable 'y' [-Wunused-variable] 15 | int cer,n,k,x=1,y=1; | ^