LA 3266 Tian Ji -- The Horse Racing

#include<cstdio>#include<cstring>#include<algorithm>using namespace std;int d1[1100],d2[1100];int main(){int n;while(~scanf("%d",&n)&&n){for(int i=0;i<n;i++)scanf("%d",&d1[i]);for(int i=0;i<n;i++)scanf("%d",&d2[i]);sort(d1,d1+n);sort(d2,d2+n);int l1=0,r1=n-1,l2=0,r2=n-1,res=0;while(n--){if(d1[r1]>d2[r2]){res++;r1--;r2--;}elseif(d1[l1]>d2[l2]){l1++;l2++;res++;}elseif(d1[l1]<d2[r2]){l1++;r2--;res--;}else{l1++;r2--;}} printf("%d\n",res*200);}}