Compilare: main.cpp: In function 'int dfs(int)': main.cpp:18:28: warning: no return statement in function returning non-void [-Wreturn-type] cnt[nod]=cnt[nod]+cnt[it];}} ^ main.cpp: In function 'int main()': main.cpp:52:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=lant[i].size();j++) ~^~~~~~~~~~~~~~~~ main.cpp:73:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (nod2.first+1<rasp[wh].size()) ~~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:82:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz+1<rasp[wh].size()) ~~~~~^~~~~~~~~~~~~~~~ main.cpp:89:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<rasp[i].size();j++){ ~^~~~~~~~~~~~~~~ main.cpp: In function 'int calclant(int, int)': main.cpp:32:29: warning: control reaches end of non-void function [-Wreturn-type] prim[++u]=it,calclant(it,u);} ^ main.cpp: In function 'int main()': main.cpp:35:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pensula.in","r",stdin); ^ main.cpp:36:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pensula.out","w",stdout); ^ main.cpp:39:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&M,&q,&C); ^ main.cpp:41:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&tata[i]); ^ main.cpp:50:16: warning: 'rad' may be used uninitialized in this function [-Wmaybe-uninitialized] calclant(rad,1); ^