回答編集履歴
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加筆
answer
CHANGED
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@@ -16,4 +16,30 @@
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16
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cout << item << endl;
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}
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}
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-
```
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```
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21
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列分割版:
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22
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```C++
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23
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#include <iostream>
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#include <fstream>
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#include <iterator>
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#include <vector>
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#include <utility>
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29
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namespace std {
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30
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std::istream& operator>>(std::istream& stream, std::pair<float,float>& ff) {
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return stream >> ff.first >> ff.second;
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}
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}
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int main() {
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using namespace std;
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vector<pair<float,float>> input((istream_iterator<pair<float,float>>(ifstream("datafile.dat"))), istream_iterator<pair<float,float>>());
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39
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40
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// かくにん
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41
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for ( pair<float,float> item : input ) {
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cout << item.first << '\t' << item.second << endl;
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}
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}
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45
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```
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