제출 #587123

#제출 시각아이디문제언어결과실행 시간메모리
587123hibiki친구 (IOI14_friend)C++11
35 / 100
2 ms468 KiB
#include "friend.h" #include<bits/stdc++.h> using namespace std; #define pb push_back // Find out best sample int ans = 0; int con[1005]; vector<int> v[1005]; int dp[1005][2]; void dfs(int nw, int fa) { dp[nw][0] = 0; dp[nw][1] = con[nw]; for(auto go: v[nw]) { if(go == fa) continue; dfs(go, nw); dp[nw][0] += max(dp[go][0], dp[go][1]); dp[nw][1] += dp[go][0]; } } int findSample(int n,int c[],int h[],int p[]){ int ty; for(int i = 0; i < n; i++) con[i] = c[i]; for(int i = 1; i < n; i++) ty = p[i]; // if(n < 20) ty = 3; if(ty == 0) { for(int i = 1; i < n; i++) v[h[i]].pb(i); dfs(0, -1); ans = max(dp[0][0], dp[0][1]); } else if(ty == 1) { for(int i = 0; i < n; i++) ans += c[i]; } else if(ty == 2) { for(int i = 0; i < n; i++) ans = max(ans, c[i]); } else { } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

friend.cpp: In function 'int findSample(int, int*, int*, int*)':
friend.cpp:41:7: warning: 'ty' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |  else if(ty == 1)
      |       ^~
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