Compilare: main.cpp: In function 'std::pair<long long int, std::pair<long long int, long long int> > dc(std::vector<std::pair<long long int, long long int> >&)': main.cpp:36:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=0; i<vec.size(); i++){ | ~^~~~~~~~~~~ main.cpp:61:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i=mid; i<vec.size(); i++){ | ~^~~~~~~~~~~ main.cpp:73:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for(int i=0; i<vec1.size(); i++){ | ~^~~~~~~~~~~~ main.cpp:76:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for(int i=0; i<vec2.size(); i++){ | ~^~~~~~~~~~~~ main.cpp:80:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i=0, j=0; i<vv1.size() || j<vv2.size();){ | ~^~~~~~~~~~~ main.cpp:80:40: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i=0, j=0; i<vv1.size() || j<vv2.size();){ | ~^~~~~~~~~~~ main.cpp:81:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | if(i==vv1.size()){ | ~^~~~~~~~~~~~ main.cpp:86:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | if(j==vv2.size()){ | ~^~~~~~~~~~~~ main.cpp:103:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for(int i=0; i<vv3.size(); i++){ | ~^~~~~~~~~~~