尺取法

xiaoxiao2021-02-28 53

while(1) //尺取法 { while(primes[en]<=n&&sum<n) sum+=primes[en++]; if(sum==n) cnt++; sum-=primes[start++]; if(sum<=0) break; } POJ2739 Sum of Consecutive Prime Numbers【素数筛选+尺取法】

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