Compilare: main.cpp: In function 'int main()': main.cpp:56:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for ( j = 0; j < soldati[l].size(); j++ ) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:69:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for ( j = 0; j < soldati[l].size(); j++ ) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:81:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | for ( j = 0; j < soldati[r].size(); j++ ) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:92:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for ( j = 0; j < soldati[r].size(); j++ ) { | ~~^~~~~~~~~~~~~~~~~~~