60分 !?!?我哪里错了???求大佬帮看看吧
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60分 !?!?我哪里错了???求大佬帮看看吧
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cccyyylll888楼主2020/8/6 10:50
#include<iostream>
using namespace std;
int a[21] = {6,2,5,5,4,5,6,3,7,6,8,4,7,7,6,7,8,5,9,8,12};
int main()
{
	int n;
	cin >> n;
	int cnt = 0;
	for(int i = 0;i <= 10;i++)
		for(int j = i;j + i <= 20;j++)
		{
		if(a[i] + a[j] + a[i+j] + 4 == n)
		{
			cnt+=2;
			if(i == j) cnt--;
		}
		}
	cout << cnt;
	return 0;
}
2020/8/6 10:50
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