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23 lines
448 B
C++
23 lines
448 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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const int N = 3e5 + 50;
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char s[N];
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int main()
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{
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int n;
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scanf("%d%s", &n, &s);
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for (int i = 1; i < n; i++)
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{
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if (s[i - 1] > s[i])
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{
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puts("YES");
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printf("%d %d", i, i + 1);
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exit(0);
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}
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}
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puts("NO");
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return 0;
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}
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