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16 lines
161 B
C++
16 lines
161 B
C++
#include <iostream>
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#include <iomanip>
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using namespace std;
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int main(){
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int a,sum=1,b=0;
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cin >>a;
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while(sum<a){
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sum*=2;
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b++;
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}
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cout <<b;
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return 0;
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}
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