QiHang的博客

typedef long long ll; const int N = 1e5+10; int main() { int a[N],sub[N]; int n; scanf("%d",&n); for(int i = 0; i < n; i++) { scanf("%d",&sub[i]); a[i] = su...

struct fraction { long long numerator; // 分子 long long denominator; // 分母 fraction() { numerator = 0; denominator = 1; } fraction(long long num) { numerator = num; denominator = 1; } f...