哆啦A梦 LDNH • 26天前
qwertyuiop[]\asdfghjkl;'zxcvbnm,./
int n;
cin >> n;
long long sum = 1;
if (n % 2 == 0) {
for (int i = 2; i <= n; i = i + 2) {
sum = sum * i % 100000;
}
} else {
for (int i = 1; i <= n; i = i + 2) {
sum = sum * i % 100000;
}
}
cout << sum;
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