Borderou de evaluare (job #626658)

Compilare: main.cpp: In function 'void getTransposeGraph(std::vector<std::vector<int> >&, std::vector<std::vector<int> >&)': main.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 42 | for (int u = 0; u < adj.size(); u++) { | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:106:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 106 | freopen("matroid.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:107:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 107 | freopen("matroid.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:114:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 114 | scanf("%d %d",&x,&y); | ~~~~~^~~~~~~~~~~~~~~ In function 'void dfs_helper(int, std::vector<std::vector<int> >&, bool*)', inlined from 'std::vector<int> findAllMotherVertices(std::vector<std::vector<int> >&)' at main.cpp:72:15: main.cpp:28:18: warning: '((bool*)visited)[-1]' may be used uninitialized [-Wmaybe-uninitialized] 28 | if (visited[u]) | ~~~~~~~~~^