Easy problem
Easy problem
https://ac.nowcoder.com/acm/contest/10293/F
include <stdio.h>
include <math.h>
int main()
{
int t, a=0, b=0, sum;
char g[101];
scanf("%d", &t);
getchar();
scanf("%s", g);
int l=strlen(g);
for(int i=0;i<l;i++)
{
if(g[i]=='x') a++;
else b++;
}
//printf("%d %d\n", a, b);
sum=fabs((a-b)/2);
printf("%d\n", sum);
return 0;
}