Compilare: main.cpp: In function 'int main()': main.cpp:44:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int j = 0; j < v[i].size(); j++) | ~~^~~~~~~~~~~~~ main.cpp:47:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int k = 0; k < v[j].size(); k++) | ~~^~~~~~~~~~~~~ main.cpp:67:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int j = 0; j < v[y].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:68:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | while(poz < v[x].size() && v[x][poz] < v[y][j]) | ~~~~^~~~~~~~~~~~~ main.cpp:72:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | if(poz < v[x].size()) | ~~~~^~~~~~~~~~~~~ main.cpp:74:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | if(poz + 1 < v[x].size()) | ~~~~~~~~^~~~~~~~~~~~~