Moving Tables

#include<stdio.h>#include<string.h>int main(void){    int x;    scanf("%d",&x);    while(x--)    {        int i,j,t,n,a[205],b[205],c[205],e=0,max=0;        memset(c,0,sizeof(c));        scanf("%d",&n);        for(i=0;i<n;i++)            {scanf("%d%d",&a[i],&b[i]);            a[i]=(a[i]+1)/2;            b[i]=(b[i]+1)/2;            if(b[i]<a[i]) {t=b[i];b[i]=a[i];a[i]=t;}            for(j=a[i];j<=b[i];j++) c[j]++;            }        for(i=0;i<201;i++)            if(c[i]>max) max=c[i];        printf("%d\n",max*10);    }    return 0;}