Compilare: main.cpp: In function 'void eulerDfs(int, int)': main.cpp:46:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[from].size(); k ++) { ~~^~~~~~~~~~~~~~~~ main.cpp:61:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = whereTata + 1; k < g[from].size(); k ++) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:120:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < produse.size(); i ++) { ~~^~~~~~~~~~~~~~~~ main.cpp:134:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 1; k < eulerApar[i].size(); k ++) { ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:23:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:26:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nrVecini); ^ main.cpp:29:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &to); ^ main.cpp:35:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &t); ^ main.cpp: In function 'int main()': main.cpp:144:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sushi2.in", "r", stdin); ^ main.cpp:145:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sushi2.out", "w", stdout); ^