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761. 字符串中的数字个数
https://www.acwing.com/problem/content/submission/code_detail/2846021/
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AcWing/761/761.cpp
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15
AcWing/761/761.cpp
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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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char c;
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int ans = 0;
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while (cin >> c) {
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if ('0' <= c && c <= '9') {
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ans++;
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}
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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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