C语言蓝桥杯十六进制转八进制

#include 
#include 
#include 

int main()
{
	int i, n, j, temp;
	char ch;
	scanf("%d", &n);
	getchar();
	long a[n];
	char str[n][100000];
	for (i = 0; i < n; i++) {
		scanf("%s", str[i]);
		for (j = 0, temp = 0; j < strlen(str[i]); j++) {
			if (48 <= str[i][j] && str[i][j] <= 57) {
				temp += (str[i][j] - 48) * pow(16, strlen(str[i]) - 1 - j);
			} else if (65 <= str[i][j] && str[i][j] <= 70) {
				temp += (str[i][j] - 55) * pow(16, strlen(str[i]) - 1 - j);
			}
		}
		a[i] = temp;  
	}
	long b[n];
	for (i = 0; i < n; i++) {
		temp = a[i];
		b[i] = 0;
		for (j = 0; temp / 8 > 0; j++) {
			b[i] += (temp % 8) * pow(10, j);
			temp = temp / 8;
		}
		b[i] += temp * pow(10, j);
	}
	for (i = 0; i < n; i++) {
		if (i + 1 == n) {
			printf("%d", b[i]);
		} else {
			printf("%dn", b[i]);
		}
	}
	return 0;
}