Compilare: main.cpp: In function 'int main()': main.cpp:76:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | while ( ct2 < sky[i].size() - 1 && ct1 < sizeSt[i] - 1 ) { | ~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:77:54: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | while ( v[sky[i][ct1]] > v[sky[i][ct2]] && ct2 < sky[i].size() - 1 ) { | ~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:81:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | if ( ct2 != sky[i].size() - 1 ) { | ~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:87:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | if ( ct2 == sky[i].size() - 1 ) { | ~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:106:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | while ( ct2 < sky[i].size() - 1 ) { | ~~~~^~~~~~~~~~~~~~~~~~~