#includevoid main(){int n,i=1,j=2,sum1=0,sum2=0;scanf("%d",&n);do{sum1=sum1+i;i++;i++;}while(i<=n);do { /*原文这里少了个do*/sum2=sum2+j;j++;j++;}while(j<=n);printf("sum1=%d,sum2=%d",sum1,sum2);}
