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26 lines
568 B
C++
26 lines
568 B
C++
#define _CRT_SECURE_NO_WARNINGS
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#define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING
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#include <bits/stdc++.h>
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using namespace std;
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int a[50050];
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int main() {
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int n, ans = 0;
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scanf("%d", &n);
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for (int i = 0; i < n; i++)
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scanf("%d", a + i);
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for (int i = 0; i < n; i++) {
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int mx = a[i], mn = a[i];
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for (int j = i; j < n; j++) {
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mx = max(mx, a[j]);
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mn = min(mn, a[j]);
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if (mx - mn == j - i)
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ans++;
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}
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}
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printf("%d", ans);
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return 0;
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}
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