28 lines
664 B
C++
28 lines
664 B
C++
#include<iostream>
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#include<cstring>
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#include<cstdio>
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#include<cmath>
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using namespace std;
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#define MAXN 10005
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int num[MAXN],n,f[MAXN];
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int main()
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{
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while(scanf("%d",&n) != EOF)
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{
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int ans = 0;
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memset(f,0,sizeof(f));
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for(int i = 0;i < n;i++)
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scanf("%d",&num[i]);
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for(int i = n - 1;i >= 0;i--)
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{
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ans += f[num[i]];
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int q = sqrt(num[i] + 1) + 1;
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for(int j = 1;j <= q && j <= num[i];j++)
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if(num[i] % j == 0)
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f[j] = i + 1,
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f[num[i] / j] = i + 1;
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}
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printf("%d\n",ans);
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}
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}
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