#include<stdio.h>
int main()
{
int sum = 0;
int a = 0;
int k = 1;
for(a=1;a<=101;a+=2)
{
sum =sum+k*a;
k=-k;
}
printf("%d\n",sum);
return 0;
}
微信扫一扫
#include<stdio.h>
int main()
{
int sum = 0;
int a = 0;
int k = 1;
for(a=1;a<=101;a+=2)
{
sum =sum+k*a;
k=-k;
}
printf("%d\n",sum);
return 0;
}
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