Compilare: main.cpp: In function 'int main()': main.cpp:46:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(i = 1; i < verticals.size(); i++){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int k = 0; k < lines.size(); k++){ | ~~^~~~~~~~~~~~~~ main.cpp:62:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | if(i + pas < verticals.size() && verticals[i + pas] <= x) | ~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:70:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | if(j + pas < points[x].size() && points[x][j + pas] <= y) | ~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:81:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | if (j + pas < lines[i].size() && ishigher(x, y, lines[i][j + pas]) > 0) { | ~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int ishigher(int, int, int)': main.cpp:28:1: warning: control reaches end of non-void function [-Wreturn-type] 28 | } | ^