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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#568368#9313. Make MaxDarkmasterWA 0ms7744kbC++141.6kb2024-09-16 16:13:302024-09-16 16:13:30

Judging History

你现在查看的是最新测评结果

  • [2024-09-18 15:56:24]
  • hack成功,自动添加数据
  • (/hack/836)
  • [2024-09-16 16:13:30]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:7744kb
  • [2024-09-16 16:13:30]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

const int N = 2e5 + 10;
int n, a[N], b[N], st[N][20][2], lg[N];
map<int, int> M;

int Max(int x, int y, int op){
	int l = lg[y - x + 1];
	return max(st[x][l][op], st[y - (1 << l) + 1][l][op]);
}

void solve(){
	long long ans = 0;
	cin >> n;
	for(int i = 1; i <= n; i ++) cin >> a[i];
	for(int i = 1; i <= n; i ++) b[i] = a[n - i + 1];
	lg[1] = 0;
	for(int i = 2; i <= n; i ++) lg[i] = lg[i >> 1] + 1;
	for(int i = 1; i <= n; i ++)
		for(int j = 1; j <= lg[n]; j ++) st[i][j][0] = st[i][j][1] = 0;
	for(int i = 1; i <= n; i ++) st[i][0][0] = a[i], st[i][0][1] = b[i];
	for(int j = 1; j <= lg[n]; j ++)
		for(int i = 1; i <= n - (1 << j) + 1; i ++)
			for(int k = 0; k <= 1; k ++)
				st[i][j][k] = max(st[i][j - 1][k], st[i + (1 << (j - 1))][j - 1][k]);
//	for(int i = 1; i <= n; i ++){
//		for(int j = i; j <= n; j ++) cout << Max(i, j, 1) << ' ';
//		cout << '\n';
//	}
	for(int i = 1; i <= n; i ++){
		int r = i + 1;
		for(int j = lg[n]; j >= 0; j --){
			if(r + (1 << j) - 1 <= n && Max(r, r + (1 << j) - 1, 0) < a[i])
				r = r + (1 << j);
		}
		ans += r - i - 1;
	}
//	cout << ans << '\n';
	for(int i = 1; i <= n; i ++){
		if(M[b[i]]) continue;
		M[b[i]] = 1;
		int r = i + 1;
		for(int j = lg[n]; j >= 0; j --){
			if(r + (1 << j) - 1 <= n && Max(r, r + (1 << j) - 1, 1) < b[i])
				r = r + (1 << j);
		}
		ans += r - i - 1;
	}
	M.clear();
	cout << ans << '\n';
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int T;
	cin >> T;
	while(T--) solve();
	return 0;
}

Details

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Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 7744kb

input:

4
2
1 2
2
2 2
7
1 1 1 2 2 2 2
3
1 2 3

output:

1
0
0
3

result:

wrong answer 3rd numbers differ - expected: '3', found: '0'