Submission #870644

#	Time	Username	Problem	Language	Result	Execution time	Memory
870644		NoLove	Monkey and Apple-trees (IZhO12_apple)	C++14	Compilation error	0 ms	0 KiB

apple

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define FOR(i, x, y) for (int i = x; i < y; i++)
#define MOD 1000000007
typedef long long ll;
using namespace std;

struct Node {
	int sum, lazy, tl, tr, l, r;
	Node() : sum(0), lazy(0), l(-1), r(-1) {}
};

const int MAXN = 123456;
Node st[64 * MAXN];
int cnt = 2;

void push(int v) {
	if (st[v].lazy) {
		st[v].sum = st[v].tr - st[v].tl + 1;
		int mid = (st[v].tl + st[v].tr) / 2;
		if (st[v].l == -1) {
			st[v].l = cnt++;
			st[st[v].l].tl = st[v].tl;
			st[st[v].l].tr = mid;
		}
		if (st[v].r == -1) {
			st[v].r = cnt++;
			st[st[v].r].tl = mid + 1;
			st[st[v].r].tr = st[v].tr;
		}
		st[st[v].l].lazy = st[st[v].r].lazy = 1;
		st[v].lazy = 0;
	}
}

void upd(int v, int l, int r) {
	push(v);
	if (l == st[v].tl && r == st[v].tr) {
		st[v].lazy = 1;
		push(v);
	} else {
		int mid = (st[v].tl + st[v].tr) / 2;
		if (st[v].l == -1) {
			st[v].l = cnt++;
			st[st[v].l].tl = st[v].tl;
			st[st[v].l].tr = mid;
		}
		if (st[v].r == -1) {
			st[v].r = cnt++;
			st[st[v].r].tl = mid + 1;
			st[st[v].r].tr = st[v].tr;
		}

		if (l > mid) upd(st[v].r, l, r);
		else if (r <= mid) upd(st[v].l, l, r);
		else {
			upd(st[v].l, l, mid);
			upd(st[v].r, mid + 1, r);
		}

		push(st[v].l);
		push(st[v].r);
		st[v].sum =
		    st[st[v].l].sum + st[st[v].r].sum;
	}
}

int get(int v, int l, int r) {
	push(v);
	if (l == st[v].tl && r == st[v].tr)
		return st[v].sum;
	else {
		int mid = (st[v].tl + st[v].tr) / 2;
		if (st[v].l == -1) {
			st[v].l = cnt++;
			st[st[v].l].tl = st[v].tl;
			st[st[v].l].tr = mid;
		}
		if (st[v].r == -1) {
			st[v].r = cnt++;
			st[st[v].r].tl = mid + 1;
			st[st[v].r].tr = st[v].tr;
		}

		if (l > mid) return get(st[v].r, l, r);
		else if (r <= mid) return get(st[v].l, l, r);
		else
			return get(st[v].l, l, mid) +
			       get(st[v].r, mid + 1, r);
	}
}

int main() {
	iostream::sync_with_stdio(false);
    if (fopen("hi.inp", "r")) {
        freopen("hi.inp", "r", stdin);
//        freopen("hi.out", "w", stdout);
    } 
	cin.tie(0);
	int m;
	cin >> m;

	st[1].sum = 0;
	st[1].lazy = 0;
	st[1].tl = 1;
	st[1].tr = 1e9;

	int c = 0;
	FOR(_, 0, m) {
		int d, x, y;
		cin >> d >> x >> y;
		if (d == 1) {
			c = get(1, x + c, y + c);
			cout << c << '\n';
		} else upd(1, x + c, y + c);
	}
    db(cnt)
	return 0;
}

Compilation message (stderr)

apple.cpp: In function 'int main()':
apple.cpp:117:5: error: 'db' was not declared in this scope
  117 |     db(cnt)
      |     ^~
apple.cpp:96:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |         freopen("hi.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~