質問編集履歴
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@@ -16,4 +16,38 @@
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int sum = std::accumulate(v.begin(), v.end(), 0);
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std::cout << "sum : " << sum << std::endl;
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}
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```
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```C++
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <iostream>
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struct score {
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std::string name;
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int aaa;
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int bbb;
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int ccc;
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score(std::string n, int a, int b, int c) :
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name(n), aaa(a), bbb(b), ccc(c) {}
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};
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class score_a {
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public:
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bool operator()(const score& value) const {
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return value.aaa ;
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}
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};
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int main() {
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std::vector<score> v1;
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v1.push_back(score("青木", 5, 10, 15));
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int tokuten = std::count_if(v1.begin(), v1.end(), score_a());
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std::cout << "青木：" << tokuten << std::endl;
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return 0;
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}
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```
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