0_0_19739576_9985.c: In function 'main': 0_0_19739576_9985.c:7:11: error: expected expression before '/' token int N;//2~100,000 ^ 0_0_19739576_9985.c:14:36: error: stray '@' in program for(int i=n+1;i<=N;i++){ //@battle ^