Submission #1210400

#TimeUsernameProblemLanguageResultExecution timeMemory
1210400hashdfdfhHappiness (Balkan15_HAPPINESS)C++20
Compilation error
0 ms0 KiB
#include <iostream>
#include <vector>
#include <cmath>
using namespace std;
#define int long long

// Index Implementation

const int MAX_M = 1e12 + 5;
const int MAX_Q = 1e5 + 5;
const int DEFAULT = 0;

// 线段树每个节点的内容
struct node {
	// 保存数值
	int value = DEFAULT;

	// lazy标记
	int lazy = 0;

	// 左侧节点
	int left = -1;

	// 右侧节点
	int right = -1;
};

class SumSegmentTree {
private:
	int len;

	// 整个线段树
	vector<node> tree;

	// 目前用到那个idx
	int curidx = 0;

	// 合并两个结果
	int combine(int x, int y) {
		return x + y;
	}

	// 把lazy的结果,应用到at上
	// len代表需要更新的区间大小,add需要需要更新的数值
	void apply(int cur, int len, int add) {
		tree[cur].value += len * add;
		tree[cur].lazy += add;
	}

	// 把lazy的数值,pushdown到at的children
	void pushdown(int cur, int at_left, int at_right) {
		// 找到mid
		int mid = (at_left + at_right) / 2;

		// 左侧
		// 先确定已经存在左侧
		if (tree[cur].left == -1) {
			tree[cur].left = curidx++;
			tree.push_back(node());
		}
		apply(tree[cur].left, mid - at_left + 1, tree[cur].lazy);

		// 右侧
		// 先确定已经存在右侧
		if (tree[cur].right == -1) {
			tree[cur].right = curidx++;
			tree.push_back(node());
		}
		apply(tree[cur].right, at_right - mid, tree[cur].lazy);

		// at的lazy重置为0,表示已经pushdown完成
		tree[cur].lazy = 0;
	}

	// 更新操作
	void update(int start, int end, int val, int cur, int at_left, int at_right) {
		// 终止条件
		// 1、完全在[start,end]范围内
		if (start <= at_left && at_right <= end) {
			apply(cur, at_right - at_left + 1, val);
			return;
		}

		// 2、完全不在[start,end]范围内,不需要更新
		if (at_right < start || end < at_left) {
			return;
		}

		// 先pushdown,再继续
		pushdown(cur, at_left, at_right);

		// 找到mid
		int mid = (at_left + at_right) / 2;

		// 左侧
		update(start, end, val, tree[cur].left, at_left, mid);

		// 右侧
		update(start, end, val, tree[cur].right, mid + 1, at_right);

		// 更新本身
		tree[cur].value = combine(tree[tree[cur].left].value, tree[tree[cur].right].value);
	}

	// 查询操作
	int query(int start, int end, int cur, int at_left, int at_right) {
		// 终止条件
		// 1、完全在[start,end]范围内
		if (start <= at_left && at_right <= end) {
			return tree[cur].value;
		}

		// 2、完全不在[start,end]范围内
		if (at_right < start || end < at_left) {
			return DEFAULT;
		}

		// 先pushdown,再继续
		pushdown(cur, at_left, at_right);

		int mid = (at_left + at_right) / 2;

		// 计算左边
		int resl = query(start, end, tree[cur].left, at_left, mid);

		// 计算右边
		int resr = query(start, end, tree[cur].right, mid + 1, at_right);

		// 返回总和
		return combine(resl, resr);
	}

public:
	SumSegmentTree(int len, int q) : len(len) {
		if (q > 0) { tree.reserve(2 * q * ceil(log2(len))); }

		// 放入一个node,作为root
		tree.push_back(node());
		curidx++;
	}

	// 更新操作
	void update(int start, int end, int val) {
		update(start, end, val, 0, 0, len - 1);
	}

	// 查询操作
	int query(int start, int end) {
		return query(start, end, 0, 0, len - 1);
	}
};

SumSegmentTree sst(MAX_M, MAX_Q);

void check() {
	// k从最小的k开始验证,直到总和
	int sum = sst.query(1, MAX_M);
	int k = 1;

	while (k < sum) {
		// 查询所有<=k的数据总和
		int cur = sst.query(1, k);

		// 说明肯定不happy
		if (cur < k) {
			cout << 0 << endl;
			return;
		}

		// 否则下一轮的k就是cur+1
		k = cur + 1;
	}

	// 说明是happy
	cout << 1 << endl;
}

signed main() {
	int n, maxsize;
	cin >> n >> maxsize;

	// 读取初始的n个banknotes
	int b;
	for (int i = 0; i < n; ++i) {
		cin >> b;
		sst.update(b, b, b);
	}
	// 每次是否是happy
	check();

	int q;
	cin >> q;

	// 读q次查询
	int type, m, tmp;
	for (int i = 0; i < q; ++i) {
		cin >> type >> m;

		// 如果是新增
		if (type == 1) {
			for (int j = 0; j < m; ++j) {
				cin >> tmp;
				sst.update(tmp, tmp, tmp);
			}
		}
		// 如果是删除
		else {
			for (int j = 0; j < m; ++j) {
				cin >> tmp;
				sst.update(tmp, tmp, -tmp);
			}
		}

		// 每次计算是否是happy
		check();
	}
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccFsswQf.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccBUBQbT.o:happiness.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccFsswQf.o: in function `main':
grader.cpp:(.text.startup+0x9a): undefined reference to `init(int, long long, long long*)'
/usr/bin/ld: grader.cpp:(.text.startup+0x15b): undefined reference to `is_happy(int, int, long long*)'
collect2: error: ld returned 1 exit status