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20 lines
321 B
C++
20 lines
321 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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string s;
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cin >> s;
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int ans = s.size() - 1;
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for (int i = 1; i < s.size(); i++) {
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if (s[i] == s[i - 1]) {
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ans--;
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}
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}
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if (s[s.size() - 1] == '0') {
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ans++;
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}
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cout << ans << endl;
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return 0;
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}
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