Compilare: main.cpp: In function 'void dfs(int)': main.cpp:60:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[u].size(); k ++) { ~~^~~~~~~~~~~~~ main.cpp: In function 'void citireTest()': main.cpp:132:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:134:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &nod[i][0], &nod[i][1]); ^ main.cpp: In function 'void citire()': main.cpp:147:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &p, &t); ^ main.cpp: In function 'int main()': main.cpp:154:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon7.in", "r", stdin); ^ main.cpp:155:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon7.out", "w", stdout); ^