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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 |
---|---|---|---|---|---|---|---|---|---|
#573589 | #9313. Make Max | Anndy_bonus | RE | 0ms | 0kb | C++20 | 1001b | 2024-09-18 19:20:31 | 2024-09-18 19:20:32 |
answer
#include <bits/stdc++.h>
using LL = long long;
constexpr int N = 2e5 + 10;
int stk[N], top = -1;
void solve() {
int n;
std::cin >> n;
std::vector<int> a(n + 2);
for (int i = 1; i <= n; i++) {
std::cin >> a[i];
}
LL ans = 0;
top = -1;
stk[++top] = 0;
for (int i = 1; i <= n; i++) {
while (top != 0 && a[stk[top]] < a[i]) {
top--;
}
ans += 1LL * i - stk[top] - 1;
stk[++top] = i;
}
top = -1;
stk[++top] = n + 1;
for (int i = n; i >= 1; i--) {
while (top != 0 && a[stk[top]] < a[i]) {
top--;
}
ans += 1LL * stk[top] - i - 1;
stk[++top] = i;
}
std::cout << ans << '\n';
}
int main() {
freopen("ans.in", "r", stdin);
freopen("ans.out", "w", stdout);
std::ios::sync_with_stdio(0);
std::cin.tie(0);
int T;
std::cin >> T;
while (T--) {
solve();
}
return 0;
}
详细
Test #1:
score: 0
Dangerous Syscalls
input:
4 2 1 2 2 2 2 7 1 1 1 2 2 2 2 3 1 2 3