Compilare: main.cpp: In function 'int main()': main.cpp:90:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int j = 0; j < v[i].size(); j++) | ~~^~~~~~~~~~~~~ main.cpp:98:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | for(int x = 0; x < v[i - k].size(); x++) ///le parcurgem pe toate | ~~^~~~~~~~~~~~~~~~~ main.cpp:109:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int j = 0; j < v[i].size(); j++) | ~~^~~~~~~~~~~~~