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"""#
### 谜题描述
You are given an array a_1, a_2, , a_n of integers. This array is non-increasing.
Let's consider a line with n shops. The shops are numbered with integers from 1 to n from left to right. The cost of a meal in the i-th shop is equal to a_i.
You should process q queries of two types:
* 1 x y: for each shop 1 i x set a_{i} = max(a_{i}, y).
* 2 x y: let's consider a hungry man with y money. He visits the shops from x-th shop to n-th and if he can buy a meal in the current shop he buys one item of it. Find how many meals he will purchase. The man can buy a meal in the shop i if he has at least a_i money, and after it his money decreases by a_i.
Input
The first line contains two integers n, q (1 n, q 2 10^5).
The second line contains n integers a_{1},a_{2}, , a_{n} (1 a_{i} 10^9) the costs of the meals. It is guaranteed, that a_1 a_2 a_n.
Each of the next q lines contains three integers t, x, y (1 t 2, 1 x n, 1 y 10^9), each describing the next query.
It is guaranteed that there exists at least one query of type 2.
Output
For each query of type 2 output the answer on the new line.
Example
Input
10 6
10 10 10 6 6 5 5 5 3 1
2 3 50
2 4 10
1 3 10
2 2 36
1 4 7
2 2 17
Output
8
3
6
2
Note
In the first query a hungry man will buy meals in all shops from 3 to 10.
In the second query a hungry man will buy meals in shops 4, 9, and 10.
After the third query the array a_1, a_2, , a_n of costs won't change and will be \{10, 10, 10, 6, 6, 5, 5, 5, 3, 1\}.
In the fourth query a hungry man will buy meals in shops 2, 3, 4, 5, 9, and 10.
After the fifth query the array a of costs will be \{10, 10, 10, 7, 6, 5, 5, 5, 3, 1\}.
In the sixth query a hungry man will buy meals in shops 2 and 4.
Here is a reference code to solve this task. You can use this to help you genereate cases or validate the solution.
```python
#include <bits/stdc++.h>
using namespace std;
template <class T>
using vc = vector<T>;
template <class T>
using vvc = vc<vc<T>>;
template <class T>
void mkuni(vector<T> &v) {
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
}
long long rand_int(long long l, long long r) {
static mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count());
return uniform_int_distribution<long long>(l, r)(gen);
}
template <class T>
void print(T x, int suc = 1) {
cout << x;
if (suc == 1)
cout << '\n';
else
cout << ' ';
}
template <class T>
void print(const vector<T> &v, int suc = 1) {
for (int i = 0; i < v.size(); i++)
print(v[i], i == (int)(v.size()) - 1 ? suc : 2);
}
const int N = 3e5 + 10;
struct Tree {
long long l, r, lazy, sum, mi, ma;
} tree[N << 2];
void push_up(int rt) {
tree[rt].sum = tree[rt << 1].sum + tree[rt << 1 | 1].sum;
tree[rt].ma = tree[rt << 1].ma;
tree[rt].mi = tree[rt << 1 | 1].mi;
}
void build(int l, int r, int rt, vector<int> &a) {
tree[rt].l = l, tree[rt].r = r, tree[rt].lazy = 0;
if (l == r) {
tree[rt].sum = tree[rt].mi = tree[rt].ma = a[l];
return;
}
int mid = l + r >> 1;
build(l, mid, rt << 1, a);
build(mid + 1, r, rt << 1 | 1, a);
push_up(rt);
}
void push_down(int rt) {
if (tree[rt].lazy) {
int x = tree[rt].lazy, l = tree[rt].l, r = tree[rt].r;
tree[rt].lazy = 0;
tree[rt << 1].sum = 1ll * (tree[rt << 1].r - tree[rt << 1].l + 1) * x;
tree[rt << 1].mi = tree[rt << 1].ma = x;
tree[rt << 1].lazy = x;
tree[rt << 1 | 1].sum =
1ll * (tree[rt << 1 | 1].r - tree[rt << 1 | 1].l + 1) * x;
tree[rt << 1 | 1].mi = tree[rt << 1 | 1].ma = x;
tree[rt << 1 | 1].lazy = x;
}
}
void update_range(int L, int R, long long Y, int rt) {
int l = tree[rt].l, r = tree[rt].r;
if (tree[rt].mi >= Y || l > R) return;
if (tree[rt].ma <= Y && r <= R) {
tree[rt].sum = 1ll * (r - l + 1) * Y;
tree[rt].mi = tree[rt].ma = Y;
tree[rt].lazy = Y;
return;
}
push_down(rt);
update_range(L, R, Y, rt << 1);
update_range(L, R, Y, rt << 1 | 1);
push_up(rt);
}
int query_range(int L, int R, int rt, long long &Y) {
int l = tree[rt].l, r = tree[rt].r;
if (tree[rt].mi > Y || r < L) return 0;
if (tree[rt].sum <= Y && l >= L) {
Y -= tree[rt].sum;
return r - l + 1;
}
push_down(rt);
long long res = 0;
res += query_range(L, R, rt << 1, Y);
res += query_range(L, R, rt << 1 | 1, Y);
return res;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, q;
cin >> n >> q;
vector<int> a(n + 1);
for (int i = 1; i <= n; ++i) cin >> a[i];
build(1, n, 1, a);
while (q--) {
long long x, y, op;
cin >> op >> x >> y;
if (op == 1) {
update_range(1, x, y, 1);
} else
cout << query_range(x, n, 1, y) << '\n';
}
}
```
请完成上述谜题的训练场环境类实现包括所有必要的方法
"""
from bootcamp import Basebootcamp
import re
import random
from itertools import accumulate
from bootcamp import Basebootcamp
class Cgreedyshoppingbootcamp(Basebootcamp):
def __init__(self, **params):
self.n = params.get('n', 10)
self.q = params.get('q', 5)
self.n = max(1, self.n) # 确保最小为1
self.q = max(1, self.q) # 确保至少一个查询
def case_generator(self):
# 生成非递增数组(优化版)
a = [random.randint(1, 10**9)]
for _ in range(1, self.n):
a.append(random.randint(1, a[-1]))
# 生成查询列表并确保类型2存在
queries = []
type2_indices = []
for i in range(self.q):
t = random.choices([1, 2], weights=[0.4, 0.6])[0] # 增加类型2概率
x = random.randint(1, self.n)
y = random.randint(1, 10**9)
queries.append([t, x, y]) # 统一使用列表存储
if t == 2:
type2_indices.append(i)
# 确保至少一个类型2查询
if not type2_indices:
queries[-1] = [2, random.randint(1, self.n), random.randint(1, 10**9)]
type2_indices = [self.q-1]
# 预处理答案(优化模拟)
current_a = a.copy()
answers = []
for op in queries:
t, x, y = op
if t == 1:
# 使用二分查找确定有效更新范围
left = 0
right = x-1 # 转换为0-based索引
update_pos = next((i for i in range(x) if current_a[i] < y), None)
if update_pos is not None:
current_a[update_pos:x] = [max(y, val) for val in current_a[update_pos:x]]
else:
# 使用累积和优化计算
prefix = list(accumulate(current_a[x-1:]))
money = y
count = 0
for s in prefix:
if s > money:
break
count += 1
money -= s - (prefix[count-2] if count>1 else 0)
answers.append(count)
return {
'n': self.n,
'q': self.q,
'initial_array': a,
'queries': queries, # 统一使用列表存储
'answers': answers
}
@staticmethod
def prompt_func(question_case) -> str:
input_lines = [
f"{question_case['n']} {question_case['q']}",
' '.join(map(str, question_case['initial_array']))
]
for op in question_case['queries']:
input_lines.append(f"{op[0]} {op[1]} {op[2]}")
return f"""你正在处理餐馆消费查询系统,需要处理两种操作类型:
**规则详解**
1. 类型1 (1 x y)将前x个餐馆的餐费更新为原值和y的较大值
2. 类型2 (2 x y)顾客从第x个餐馆开始向后消费直到余额不足
**输入格式**
{" ".join(input_lines[:2])}
{chr(10).join(input_lines[2:])}
**答案格式要求**
请将所有类型2查询的答案按顺序排列在[answer]标签内例如
[answer]
3
5
2
[/answer]"""
@staticmethod
def extract_output(output):
matches = re.findall(r'\[answer\](.*?)\[/answer\]', output, re.DOTALL)
if not matches:
return None
answers = []
for line in matches[-1].strip().split('\n'):
if line.strip().isdigit():
answers.append(int(line.strip()))
return answers or None
@classmethod
def _verify_correction(cls, solution, identity):
return solution == identity['answers']
# 验证示例
if __name__ == "__main__":
bootcamp = Cgreedyshoppingbootcamp(n=10, q=6)
case = bootcamp.case_generator()
print("Generated Case:")
print(f"Initial array: {case['initial_array']}")
print(f"Queries: {case['queries']}")
print(f"Expected answers: {case['answers']}")
prompt = Cgreedyshoppingbootcamp.prompt_func(case)
print("\nGenerated Prompt:")
print(prompt)
# 模拟模型回答
response = f"[answer]\n" + "\n".join(map(str, case['answers'])) + "\n[/answer]"
extracted = Cgreedyshoppingbootcamp.extract_output(response)
print("\nExtracted Answer:", extracted)
score = Cgreedyshoppingbootcamp.verify_score(response, case)
print("Validation Score:", score)