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16 lines
198 B
C++
16 lines
198 B
C++
#include <iostream>
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using namespace std;
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int main()
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{
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int t, a, b, i;
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cin >> t;
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for (i = 0; i < t; i++)
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{
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cin >> a >> b;
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cout << a%b << endl;
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}
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return 0;
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}
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