15 lines
196 B
C++
15 lines
196 B
C++
#include <iostream>
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using namespace std;
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int main(){
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int n, k;
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cin >> n >> k;
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int tmp = n;
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int js = 0;
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while(tmp >= k){
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tmp = tmp - k + 1;
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js++;
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}
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cout << n + js << endl;
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return 0;
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}
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