int n;
scanf("%d", &n);
int fact = 1;
int i = 1;
while ( i <= n ) {
fact *=i;
i++;
}
上述可用 for 循环代替
for (int i = 1; i<= n; i++) {
fact *= i;
}
int n;
scanf("%d", &n);
int fact = 1;
int i = 1;
while ( i <= n ) {
fact *=i;
i++;
}
上述可用 for 循环代替
for (int i = 1; i<= n; i++) {
fact *= i;
}