Compilare: main.cpp: In function 'int main()': main.cpp:28:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int j = 0; j < v[i].size(); j++) | ~~^~~~~~~~~~~~~ main.cpp:31:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int k = 0; k < v[j].size(); k++) | ~~^~~~~~~~~~~~~ main.cpp:48:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(int j = 0; j < v[y].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | while(poz < v[x].size() && v[x][poz] < v[y][j]) | ~~~~^~~~~~~~~~~~~ main.cpp:53:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | if(poz < v[x].size()) | ~~~~^~~~~~~~~~~~~ main.cpp:55:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if(poz + 1 < v[x].size()) | ~~~~~~~~^~~~~~~~~~~~~