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30 lines
446 B
30 lines
446 B
#include <bits/stdc++.h>
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using namespace std;
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/*
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测试用例：
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5
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12321
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*/
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int cnt = 1;
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// 递归写法
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void dfs(string s) {
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int p;
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for (p = s.size() - 1; p >= 1; p--)
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if (s[0] != s[p]) break;
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string t;
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for (int i = 1; i <= p; i++) t += s[i];
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if (t.size()) cnt++, dfs(t);
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}
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int main() {
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int n;
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string s;
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cin >> n >> s;
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dfs(s);
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cout << cnt << endl;
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return 0;
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} |