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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#139448 | #5252. Deforestation | tselmegkh# | WA | 15ms | 11288kb | C++20 | 1.2kb | 2023-08-13 16:12:32 | 2023-08-13 16:12:34 |
Judging History
answer
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <cstdlib>
#include <cmath>
#include <cstring>
#include <iomanip>
using namespace std;
const int N = 2e5 + 5, inf = 1e9;
#define pb push_back
#define mp make_pair
#define ll long long
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define sz(x) (int)x.size()
typedef vector<int> vi;
typedef pair<int,int> ii;
typedef vector<ii> vii;
vii g[N];
int cur = 2;
void scan(int n, int par){
for(int i = 0; i < n; i++){
int a, b; cin >> a >> b;
cur++;
g[par].pb({cur, a});
scan(b, cur);
}
}
ll dp[N];
void dfs(int u){
for(auto [v, w] : g[u]){
dfs(v);
dp[u] += (dp[v] + w);
}
}
void solve(){
ll w, m;
cin >> w >> m;
int n;
cin >> n;
g[1].pb({2, m});
scan(n, 2);
dfs(1);
cout << (dp[1] + w - 1) / w << '\n';
}
int main(){
ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
int t = 1;
// cin >> t;
while(t--){
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 15ms
memory: 11288kb
input:
999900000 7339 3 14947 2 12850 3 8986 10 11599 9 8889 10 10711 4 8015 1 11626 0 9492 1 7017 0 8863 0 8632 0 5321 5 9906 0 11687 0 9845 0 10469 0 11708 0 14950 5 11934 0 11922 0 13101 0 12000 0 9082 0 9273 5 12296 0 6119 0 9201 0 12652 0 12957 0 7454 5 12515 0 12976 0 10358 0 13997 0 8371 0 10181 5 8...
output:
1
result:
ok single line: '1'
Test #2:
score: -100
Wrong Answer
time: 10ms
memory: 9556kb
input:
2 1 99999 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 ...
output:
50000
result:
wrong answer 1st lines differ - expected: '99999', found: '50000'