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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#718638 | #5417. Chat Program | Rightt | RE | 23ms | 5900kb | C++20 | 1.3kb | 2024-11-06 21:01:46 | 2024-11-06 21:01:51 |
Judging History
answer
#include <bits/stdc++.h>
#define IOS ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
using ll = long long;
const int N = 2e5 + 10;
ll n, k, m, c, d;
ll a[N], p[N];
bool check(ll x){
//难写!
//预处理<x的时刻
for (int i = 0; i < n + m; i ++ ) p[i] = 0;
int res = 0;
for (int i = m; i < n + m; i ++ ){
if (a[i] >= x){
res ++;
}else if (a[i] + c + d * (m - 1) >= x){
int pre;
if (d == 0 || a[i] + c >= x){
pre = i + 1;
}else{
int y = (x - c - a[i] + d - 1) / d;
pre = i - y + 1;
}
p[pre] ++; //pre时刻去除的贡献
}
}
for (int i = 0; i + m - 1 < n + m; i ++ ){
res -= p[i];
if (i+m-1>=m&&a[i+m-1]<x&&a[i+m-1]+c+d*(m-1)>=x) res ++;
if (i >= m && res >= k) return true;
}
return false;
}
void solve(){
cin >> n >> k >> m >> c >> d;
for (int i = m; i < n + m; i ++ ) cin >> a[i];
ll l = 0, r = 1e9 * (2e5 + 10);
while (l < r){
ll mid = (l + r + 1) / 2;
if (check(mid)) l = mid;
else r = mid - 1;
}
cout << l;
}
signed main(){
IOS;
int t = 1;
// cin >> t;
while (t -- ){
solve();
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5600kb
input:
6 4 3 1 2 1 1 4 5 1 4
output:
4
result:
ok 1 number(s): "4"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3684kb
input:
7 3 2 4 0 1 9 1 9 8 1 0
output:
9
result:
ok 1 number(s): "9"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3616kb
input:
8 3 5 0 0 2 0 2 2 1 2 1 8
output:
2
result:
ok 1 number(s): "2"
Test #4:
score: 0
Accepted
time: 23ms
memory: 5900kb
input:
200000 200000 100000 0 1000000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
output:
0
result:
ok 1 number(s): "0"
Test #5:
score: -100
Runtime Error
input:
200000 1 100000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 100000000...