回答編集履歴
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@@ -1,14 +1,15 @@
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C++ならばstd::mapを使うといいのではないでしょうか?
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```c++
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#include<map>
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#include <map>
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#include<iostream>
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#include <iostream>
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#include <algorithm>
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int main(){
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std::map<int,int> hikaku;
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hikaku[4] = 6;
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hikaku[2] = 99;
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hikaku[5] =
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hikaku[5] = 3;
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int min = std::min_element(begin(hikaku),end(hikaku),
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[](auto &a, auto &b) {
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