Compilare: main.cpp: In function 'void read()': main.cpp:44:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(cer == 3) ^~ main.cpp:45:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' Pow[0] = 1; Pow[1] = 5; Pow[2] = 25; Pow[3] = 125; ^~~ main.cpp:47:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] bool ok; ^~ main.cpp: In function 'int BFS(int)': main.cpp:65:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Gph[node].size(); i++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:70:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int BFS_cer2(int)': main.cpp:75:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Gph[node].size(); i++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:89:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int BFS_cer3(int, int)': main.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Gph[node].size(); i++){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:101:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void read()': main.cpp:43:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d ", &cer, &N, &M); ^ main.cpp:49:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %s ", &a, &b, s); ^ main.cpp: In function 'int main()': main.cpp:105:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.in", "r", stdin); ^ main.cpp:106:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.out", "w", stdout); ^