Compilare: main.cpp: In function 'void dfs(int)': main.cpp:34:23: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=] 34 | fprintf(fout, "%d\n", ans.size() - graph[i].posInStack + 1); | ~^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | int std::vector<int>::size_type {aka long unsigned int} | %ld main.cpp:35:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for ( i2 = graph[i].posInStack; i2 < ans.size(); i2++ ) { | ~~~^~~~~~~~~~~~