Borderou de evaluare (job #637822)

Compilare: main.cpp: In function 'int solve1(std::vector<std::vector<int> >&, std::ofstream&)': main.cpp:10:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 10 | for (int i = 0; i < a.size(); ++i) { | ~~^~~~~~~~~~ main.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 12 | for (int j = 0; j < a[i].size(); ++j) { | ~~^~~~~~~~~~~~~ main.cpp:18:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 18 | for (int i = 0; i < cnt.size(); ++i) { | ~~^~~~~~~~~~~~ main.cpp:24:1: warning: no return statement in function returning non-void [-Wreturn-type] 24 | } | ^