Compilare: main.cpp: In function 'int main()': main.cpp:63:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(j=0; j<vec.size()-1; j++) | ~^~~~~~~~~~~~~ main.cpp:76:30: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 76 | if(vec.size()==k) | ~~~~~~~~~~^~~ main.cpp:82:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(i=2; i<vec.size(); i++) | ~^~~~~~~~~~~ main.cpp:84:26: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 84 | if(vec.size()==k) | ~~~~~~~~~~^~~ main.cpp:92:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for(j=0; j<vec.size()-1; j++) | ~^~~~~~~~~~~~~