Compilare: main.cpp: In function 'int main()': main.cpp:97:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for(i=0; i<lin.size(); i++) | ~^~~~~~~~~~~ main.cpp:107:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(i=0; i<col.size(); i++) | ~^~~~~~~~~~~ main.cpp:134:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for(j=0; j<vec[i].size(); j++) | ~^~~~~~~~~~~~~~ main.cpp:177:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 177 | for(j=0; j<vec2[i].size(); j++) | ~^~~~~~~~~~~~~~~ main.cpp:185:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 185 | for(j=0; j<vec2[i].size(); j++) | ~^~~~~~~~~~~~~~~ main.cpp:187:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 187 | if(j==vec2[i].size()-1) | ~^~~~~~~~~~~~~~~~~~ main.cpp:69:15: warning: unused variable 'k' [-Wunused-variable] 69 | int n,i,j,k,m,roci,inamici,x,y,z; | ^ main.cpp:69:32: warning: unused variable 'x' [-Wunused-variable] 69 | int n,i,j,k,m,roci,inamici,x,y,z; | ^ main.cpp:69:34: warning: unused variable 'y' [-Wunused-variable] 69 | int n,i,j,k,m,roci,inamici,x,y,z; | ^ main.cpp: In function 'long long int querry(int, int, int, int, int)': main.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type] 66 | } | ^