39 lines
379 B
C++
39 lines
379 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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int a[11]={5, 13, 19, 21, 37, 56, 64, 75, 80, 88, 92};
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int main()
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{
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int x;
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cin>>x;
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int l=0,r=10;
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int ans;
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while(l<=r)
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{
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int mid=(l+r)/2;
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if(x==a[mid])
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{
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cout<<mid;
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return 0;
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}
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if(x<a[mid])
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{
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r=mid-1;
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}
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else
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{
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ans=mid;
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l=mid+1;
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}
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}
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cout<<"Not found!";
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return 0;
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}
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//5
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//1 -2 3 1 -4
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