浙大PAT 1048题 1048. Find Coins

#include<stdio.h>
int arr[1010];
int main(){
	int i,j,n,m,num;
	scanf("%d %d",&n,&m);
	for(i=0;i<=1000;i++){
		arr[i]=0;
	}
	for(i=1;i<=n;i++){
		scanf("%d",&num);
		arr[num]++;
	}
	for(i=1;i<=m;i++){
		if(arr[i]>0){
			arr[i]--;
			if(arr[m-i]>0){
				printf("%d %d\n",i,m-i);
				break;
			}	
		}
	}
	if(i>m) printf("No Solution\n");
	return 0;
}