牛浩宇专属题解

include

using namespace std;

int main() {

string s;
cin >> s;
int sum = 0, mod = 0, a = 1;
for (int i = 0; i < s.size() - 1; i++) {
	if (s[i] != '-') {
		int b = s[i] - '0';
		sum += b * a;
		a++;
	}
}
mod = sum % 11;
char c;
if (mod == 10) {
	c = 'X';
} else {
	c = mod + '0';
}
if (s[12] == c) {
	cout << "Right";
} else {
	s[12] = c;
	cout << s;
}
return 0;

}

评论:

#include<stdio.h>
#include<stdlib.h>
int main()
{
	int i,n;
	scanf("%d",&n);
	double m,sum;
	m=100;
	sum=0;
	for(i=0;i<n;i++)
	{
		sum=sum+m;
		m=m/2;
		sum=sum+m;
	}
	sum=sum-m;
	printf("%f %f\n",sum,m);
	return 0;
}

Gooooogle • 15天前

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