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답안 #541321

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
541321 2022-03-23T04:52:55 Z Fidan Addk (eJOI21_addk) C++17
92 / 100
 187 ms 6584 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const ll N = 1000'010;
ll sumpre(ll x, ll y, vector<ll> &pre, vector<ll> &dp){
	return pre[y]-pre[x-1]-(x-1)*(dp[y]-dp[x-1]);
}
ll sumsuf(ll x, ll y, vector<ll> &pre, vector<ll> &dp){
	return (y-x+2)*(dp[y]-dp[x-1])-sumpre(x, y, pre, dp);
}
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	ll n, k, i;
	cin>>n>>k;
	
	vector<ll> a(n+1, 0);
	for(i=1; i<=n; i++){
		cin>>a[i];
	}
	
	vector<ll> pre(n+1, 0);
	vector<ll> dp(n+1, 0);
	
	for(i=1; i<=n; i++){
		pre[i]=pre[i-1]+i*a[i];
		dp[i]=dp[i-1]+a[i];
	}
	
	ll q;
	cin>>q;
	while(q--){
		ll t;
		cin>>t;
		if(t==1){
			for(i=0; i<k; i++){
				ll x1;
				cin>>x1;
			}
		}
		else {
			ll l, r, m, k, s=0, b;
			cin>>l>>r>>m;
			k=r-l+1;
			if(k>=2*m){
				s=sumpre(l, l+m-1, pre, dp)+m*(dp[r-m]-dp[l+m-1])+sumsuf(r-m+1, r, pre, dp);
			}
			else {
				b=k-m+1;
				s=sumpre(l, l+b-1, pre, dp)+b*(dp[r-b]-dp[l+b-1])+sumsuf(r-b+1, r, pre, dp);
			}
			cout<<s<<endl;
		}
	}
	return 0;
}

Subtask #1
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 3 ms 340 KB Output is correct
4 Correct 5 ms 468 KB Output is correct
5 Correct 7 ms 456 KB Output is correct
6 Correct 8 ms 596 KB Output is correct
7 Correct 10 ms 588 KB Output is correct
8 Correct 12 ms 768 KB Output is correct
9 Correct 16 ms 840 KB Output is correct

Subtask #2
56.0 / 56.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 1108 KB Output is correct
2 Correct 51 ms 2108 KB Output is correct
3 Correct 66 ms 2796 KB Output is correct
4 Correct 115 ms 4708 KB Output is correct
5 Correct 163 ms 6584 KB Output is correct
6 Correct 144 ms 6348 KB Output is correct
7 Correct 187 ms 6336 KB Output is correct

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 88 ms 1996 KB Output isn't correct
2 Halted 0 ms 0 KB -