Submission #890262

#	Time	Username	Problem	Language	Result	Execution time	Memory
890262		Justin1	Monkey and Apple-trees (IZhO12_apple)	C++14	0 / 100	383 ms	262144 KiB

apple

#include <bits/stdc++.h>
#define f first
#define s second
// #define int long long
using namespace std;
 
class dynamicSeg { //range max query, range set update
	int lzy, val;
	int l, r;
	dynamicSeg *L = NULL, *R = NULL;
	void extend(dynamicSeg *&node, int l, int r) {
		if (node == NULL) node = new dynamicSeg(l, r);
	}
	void push() {
		if (!lzy) return;
		int mid = (this->l + this->r) / 2;
		extend(L, this->l, mid), extend(R, mid + 1, this->r);
		L-> val = L->r - L->l + 1;
		R-> val = R->r - R->l + 1;
		L-> lzy = R->lzy = !(lzy = 0);
	}
public:
	dynamicSeg (int sz) : l(1), r(sz) {}
	dynamicSeg (int l, int r) : l(l), r(r) {}
	void upd(int l, int r) {
		push();
		if (this->r < l || r < this->l) return;
		if (l <= this->l && this->r <= r) {
			val = this->r - this->l + 1;
			lzy = 1;
			return;
		}
		int mid = (this->l + this->r) / 2;
		extend(L, this->l, mid), extend(R, mid + 1, this->r);
		L->upd(l, r), R->upd(l, r);
		val = L->val + R->val;
	}
	int qry(int l, int r) {
		push();
		if (this->r < l || r < this->l) return 0;
		if (l <= this->l && this->r <= r) return val;
		int mid = (this->l + this->r) / 2;
		return (L ? L->qry(l, r) : 0) + (R ? R->qry(l, r) : 0);
	}
};
 
int n, m, k, x, y, z;
dynamicSeg seg(1'000'000'000);
 
void solve() {
	int C = 0;
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> x >> y >> z;
		if (x == 1) cout << (C = seg.qry(y + C, z + C)) << "\n"; 
		else seg.upd(y + C, z + C);
	}
}
 
signed main() {
    cin.tie(0), cout.tie(0) -> sync_with_stdio(0);
    cout << fixed << setprecision(10);
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
}

Compilation message (stderr)

apple.cpp: In member function 'int dynamicSeg::qry(int, int)':
apple.cpp:42:7: warning: unused variable 'mid' [-Wunused-variable]
   42 |   int mid = (this->l + this->r) / 2;
      |       ^~~

• Subtask 1: 0 / 100