Compilare: main.cpp: In function 'int main()': main.cpp:61:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Div.size(); i++){ ~~^~~~~~~~~~~~ main.cpp:67:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Div.size(); j++){ ~~^~~~~~~~~~~~ main.cpp:73:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Div.size(); j++){ ~~^~~~~~~~~~~~ main.cpp:46:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("numere6.in", "r", stdin); ^ main.cpp:47:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("numere6.out", "w", stdout); ^ main.cpp:50:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b); ^