Compilare: main.cpp: In function 'int main()': main.cpp:76:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<poz[i].size();j++) dp[i]=min(dp[i],dp[poz[i][j]]); ~^~~~~~~~~~~~~~ main.cpp:60:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("kc.in","r",stdin); ^ main.cpp:61:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("kc.out","w",stdout); ^ main.cpp:63:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ main.cpp:64:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",sir+1); ^ main.cpp:68:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",sir1+1); ^