제출 #1138605

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1138605		simplemind_31	새로운 문제 (POI13_luk)	C++20	30 / 100	95 ms	196608 KiB

luk

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,a,b;
vector<vector<ll>> graph;
ll degree[300000];
vector<vector<ll>> dp;
ll solve(ll now,ll cantiadja,ll dia,ll res,ll ante){
    if(dia>=n){
        return res;
    }
    if(dp[now][dia]!=-1e9){
        return dp[now][dia];
    }
    res=max(res,((cantiadja-1)/dia)+1);
    for(auto u:graph[now]){
        if(u==ante){
            res=max(solve(u,cantiadja,dia+1,res,now),res);
        }else{
            res=max(solve(u,cantiadja+degree[u]-1,dia+1,res,now),res);
        }
    }
    return dp[now][dia]=res;
}
int main(){
    scanf("%lld",&n);
    graph.resize(n);
    dp.assign(n,vector<ll>(n,-1e9));
    for(int i=1;i<n;i++){
        scanf("%lld%lld",&a,&b);
        a--;b--;
        degree[a]++;degree[b]++;
        graph[a].push_back(b);
        graph[b].push_back(a);
    }
    printf("%lld",solve(0,degree[0],1,0,-1));
}

컴파일 시 표준 에러 (stderr) 메시지

luk.cpp: In function 'int main()':
luk.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
luk.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         scanf("%lld%lld",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10