제출 #200810

#제출 시각아이디문제언어결과실행 시간메모리
200810ekremBitaro’s Party (JOI18_bitaro)C++98
0 / 100
14 ms12024 KiB
#pragma GCC optimize ("O3") #pragma GCC target ("sse4") #include <bits/stdc++.h> using namespace std; typedef long long lo; typedef pair< lo,lo > PII; #define fi first #define se second #define mp make_pair #define pb push_back #define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL) #define FOR for(int i=1;i<=n;i++) #define mid ((start+end)/2) #define ort ((bas+son)/2) const lo MAX = -1000000000000000000; const lo MIN = 1000000000000000000; const lo inf = 1000000000; const lo KOK = 100000; const lo LOG = 30; const lo li = 500005; const lo mod = 1000000007; int n,m,b[li],a[li],k,flag,t,vis[li],hedef; int cev; string s; vector<int> v[li]; inline void dfs(int node,int der){ //~ cout<<node<<" : : "<<vis[node]<<endl; if(vis[node]==2)return ; vis[node]=2; for(int i=0;i<(int)v[node].size();i++){ int go=v[node][i]; dfs(go,der+1); } if(node==hedef)cev=max(cev,der); } int main(void){ scanf("%d %d %d",&n,&m,&t); for(int i=1;i<=m;i++){ int x,y; scanf("%d %d",&x,&y); v[x].pb(y); } while(t--){ cev=0; scanf("%d",&hedef); scanf("%d",&k); FOR vis[i]=0; for(int i=1;i<=k;i++){ int x; scanf("%d",&x); vis[x]=1; } FOR{ if(vis[i]==0){dfs(i,0);break;} } printf("%d\n",cev); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

bitaro.cpp: In function 'int main()':
bitaro.cpp:45:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&n,&m,&t);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&x,&y);
         ~~~~~^~~~~~~~~~~~~~~
bitaro.cpp:53:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&hedef);
         ~~~~~^~~~~~~~~~~~~
bitaro.cpp:54:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&k);
         ~~~~~^~~~~~~~~
bitaro.cpp:58:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&x);
             ~~~~~^~~~~~~~~
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