13 lines
225 B
C
13 lines
225 B
C
#include <stdio.h>
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int main(void){
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long long N,count = 0;
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scanf("%lld",&N);
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for(long long i = 1; i < N; i++){
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double j = (double)(N-i)/(i+1);
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if(j - (int)j < 10e-6) count++;
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}
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printf("%lld\n",count/2);
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return 0;
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}
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