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11 lines
171 B
C++
11 lines
171 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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double f;
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cin >> f;
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cout << fixed << setprecision(5) << 5 * (f - 32) / 9 << endl;
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return 0;
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}
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