题解 | 构造A+B
构造A+B
https://www.nowcoder.com/practice/953806d9f41a4d5fbbab002ed61923ff
#include <stdio.h>
int main() {
int n,k; //N=6
int count=0;
scanf("%d %d",&n,&k);
for(int i =1;i<n;i++){
int j=n-i;
if(j>0)count++;
if(count==k)printf("YES");
}
if(count<k) printf("NO");
return 0;
}
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