View Code of Problem 17

#include<stdio.h>
#include<algorithm>
using namespace std;
int n,m;
int a[100];
int main()
{
	while(scanf("%d%d",&n,&m)!=EOF)
	{
        int i;
		for(i=0;i<n*m;i++)
		scanf("%d",&a[i]);
		sort(a,a+n*m);
		int sum=0;
        for(i=1;i<n*m;i++)
		{
			if(a[i]=a[i-1]+1)
				sum++;
			else break;
		}
		printf("%d\n",sum);
	}
	return 0;
}

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