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UOI 历年题目（按原顺序）
-loj5202 「UOI 2025 Stage 4 Day1」男生与女生
-loj5203 「UOI 2025 Stage 4 Day1」分成三组
-loj5204 「UOI 2025 Stage 4 Day1」凸数组
-loj5205 「UOI 2025 Stage 4 Day1」简单子序列
-loj5206 「UOI 2025 Stage 4 Day2」曼哈顿配对
-loj5207 「UOI 2025 Stage 4 Day2」安东的礼物
-loj5208 「UOI 2025 Stage 4 Day2」ABC 翻转
-loj5209 「UOI 2025 Stage 4 Day2」简单问题
-loj5210 「UOI 2024 Stage 4 Day1」直线上的点
-loj5211 「UOI 2024 Stage 4 Day1」送给莱蒂的礼物
-loj5212 「UOI 2024 Stage 4 Day1」子数组美丽度查询
-loj5213 「UOI 2024 Stage 4 Day1」AND 数组
-loj5214 「UOI 2024 Stage 4 Day2」彩色表格
-loj5215 「UOI 2024 Stage 4 Day2」足球
-loj5216 「UOI 2024 Stage 4 Day2」英雄与怪物
-loj5217 「UOI 2024 Stage 4 Day2」将子段归零
-loj5218 「UOI 2023 Stage 4 Day1」数组与更多数组
-loj5219 「UOI 2023 Stage 4 Day1」硬币数组与称重查询
-loj5220 「UOI 2023 Stage 4 Day1」数组与区间加法
-loj5221 「UOI 2023 Stage 4 Day1」数组与部分和
-loj5222 「UOI 2023 Stage 4 Day2」数组与子数组中位数
-loj5223 「UOI 2023 Stage 4 Day2」字符数组与近似回文
-loj5224 「UOI 2023 Stage 4 Day2」数组与再次加法
-loj5225 「UOI 2023 Stage 4 Day2」数组与 XOR
-loj5226 「UOI 2021 Stage 4 Day1」机器人
-loj5227 「UOI 2021 Stage 4 Day1」你是第 k 个吗？
-loj5228 「UOI 2021 Stage 4 Day1」数字图
-loj5229 「UOI 2021 Stage 4 Day1」树上的强盗
-loj5230 「UOI 2021 Stage 4 Day2」彩色矩阵
-loj5231 「UOI 2021 Stage 4 Day2」科扎克·武斯与最大公约数
-loj5232 「UOI 2021 Stage 4 Day2」猜排列
-loj5233 「UOI 2021 Stage 4 Day2」敌人与军刀
-loj5234 「UOI 2020 Stage 4 Day1」摩天大楼
-loj5235 「UOI 2020 Stage 4 Day1」棋盘网格
-loj5236 「UOI 2020 Stage 4 Day1」猜颜色
-loj5237 「UOI 2020 Stage 4 Day1」缩小数组
-loj5238 「UOI 2020 Stage 4 Day2」黄金田地
-loj5239 「UOI 2020 Stage 4 Day2」石堆配对
-loj5240 「UOI 2020 Stage 4 Day2」树的拓扑排序
-loj5241 「UOI 2020 Stage 4 Day2」添加边
-loj5272 「UOI 2019 Stage 4 Day1」二进制操作
-loj5273 「UOI 2019 Stage 4 Day1」科扎克·武斯与编程
-loj5274 「UOI 2019 Stage 4 Day1」波托科兰迪亚的航空路线
-loj5275 「UOI 2019 Stage 4 Day1」科扎克·武斯与最佳国家
-loj5276 「UOI 2019 Stage 4 Day2」管道
-loj5277 「UOI 2019 Stage 4 Day2」科扎克·武斯与糖果
-loj5278 「UOI 2019 Stage 4 Day2」科扎克·武斯与书籍
-loj5279 「UOI 2019 Stage 4 Day2」皮罗格兰迪亚
-loj5447 「UOI 2018 Stage 4 Day1」披萨
-loj5448 「UOI 2018 Stage 4 Day1」玛莎和小黄人
-loj5449 「UOI 2018 Stage 4 Day1」章鱼
-loj5450 「UOI 2018 Stage 4 Day1」谢尔盖和树
-loj5451 「UOI 2018 Stage 4 Day2」出租车
-loj5452 「UOI 2018 Stage 4 Day2」公交路线
-loj5453 「UOI 2018 Stage 4 Day2」文本编辑器
-loj5454 「UOI 2018 Stage 4 Day2」奥莉娅与平面
-loj5469 「UOI 2017 Stage 4 Day1」保险箱
-loj5470 「UOI 2017 Stage 4 Day1」游戏
-loj5471 「UOI 2017 Stage 4 Day1」衣柜
-loj5472 「UOI 2017 Stage 4 Day1」银行
-loj5473 「UOI 2017 Stage 4 Day2」金字塔
-loj5474 「UOI 2017 Stage 4 Day2」OrangeBook 和贴纸
-loj5475 「UOI 2017 Stage 4 Day2」场
-loj5476 「UOI 2017 Stage 4 Day2」生日派对
-loj5477 「UOI 2016 Stage 4 Day1」硬汉俱乐部
-loj5478 「UOI 2016 Stage 4 Day1」钟表
-loj5479 「UOI 2016 Stage 4 Day1」子数
-loj5480 「UOI 2016 Stage 4 Day1」抢劫
-loj5481 「UOI 2016 Stage 4 Day1」机器人
-loj5482 「UOI 2016 Stage 4 Day1」地铁
-loj5483 「UOI 2016 Stage 4 Day1」拉夫鲁什卡与数组划分
-loj5484 「UOI 2016 Stage 4 Day1」卵石自动机
章节 1. UOI 历年题目
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| loj5202 「UOI 2025 Stage 4 Day1」男生与女生 | 1 | 1 | 10 |
| loj5203 「UOI 2025 Stage 4 Day1」分成三组 | 2 | 1 | 10 |
| loj5204 「UOI 2025 Stage 4 Day1」凸数组 | 2 | 1 | 10 |
| loj5205 「UOI 2025 Stage 4 Day1」简单子序列 | 2 | 1 | 10 |
| loj5206 「UOI 2025 Stage 4 Day2」曼哈顿配对 | 1 | 1 | 10 |
| loj5207 「UOI 2025 Stage 4 Day2」安东的礼物 | 1 | 1 | 10 |
| loj5208 「UOI 2025 Stage 4 Day2」ABC 翻转 | 1 | 1 | 10 |
| loj5209 「UOI 2025 Stage 4 Day2」简单问题 | 7 | 1 | 10 |
| loj5210 「UOI 2024 Stage 4 Day1」直线上的点 | 1 | 1 | 10 |
| loj5211 「UOI 2024 Stage 4 Day1」送给莱蒂的礼物 | 3 | 1 | 10 |
| loj5212 「UOI 2024 Stage 4 Day1」子数组美丽度查询 | 1 | 1 | 10 |
| loj5213 「UOI 2024 Stage 4 Day1」AND 数组 | 2 | 1 | 10 |
| loj5214 「UOI 2024 Stage 4 Day2」彩色表格 | 1 | 1 | 10 |
| loj5215 「UOI 2024 Stage 4 Day2」足球 | 1 | 1 | 10 |
| loj5216 「UOI 2024 Stage 4 Day2」英雄与怪物 | 1 | 1 | 10 |
| loj5217 「UOI 2024 Stage 4 Day2」将子段归零 | 4 | 1 | 10 |
| loj5218 「UOI 2023 Stage 4 Day1」数组与更多数组 | 2 | 1 | 10 |
| loj5219 「UOI 2023 Stage 4 Day1」硬币数组与称重查询 | 0 | 0 | (无) |
| loj5220 「UOI 2023 Stage 4 Day1」数组与区间加法 | 1 | 1 | 10 |
| loj5221 「UOI 2023 Stage 4 Day1」数组与部分和 | 3 | 1 | 10 |
| loj5222 「UOI 2023 Stage 4 Day2」数组与子数组中位数 | 1 | 1 | 10 |
| loj5223 「UOI 2023 Stage 4 Day2」字符数组与近似回文 | 0 | 0 | (无) |
| loj5224 「UOI 2023 Stage 4 Day2」数组与再次加法 | 1 | 1 | 10 |
| loj5225 「UOI 2023 Stage 4 Day2」数组与 XOR | 1 | 1 | 10 |
| loj5226 「UOI 2021 Stage 4 Day1」机器人 | 2 | 1 | 10 |
| loj5227 「UOI 2021 Stage 4 Day1」你是第 k 个吗？ | 0 | 0 | (无) |
| loj5228 「UOI 2021 Stage 4 Day1」数字图 | 1 | 1 | 10 |
| loj5229 「UOI 2021 Stage 4 Day1」树上的强盗 | 1 | 1 | 10 |
| loj5230 「UOI 2021 Stage 4 Day2」彩色矩阵 | 1 | 1 | 10 |
| loj5231 「UOI 2021 Stage 4 Day2」科扎克·武斯与最大公约数 | 1 | 1 | 10 |
| loj5232 「UOI 2021 Stage 4 Day2」猜排列 | 0 | 0 | (无) |
| loj5233 「UOI 2021 Stage 4 Day2」敌人与军刀 | 1 | 1 | 10 |
| loj5234 「UOI 2020 Stage 4 Day1」摩天大楼 | 1 | 1 | 10 |
| loj5235 「UOI 2020 Stage 4 Day1」棋盘网格 | 0 | 0 | (无) |
| loj5236 「UOI 2020 Stage 4 Day1」猜颜色 | 0 | 0 | (无) |
| loj5237 「UOI 2020 Stage 4 Day1」缩小数组 | 1 | 1 | 10 |
| loj5238 「UOI 2020 Stage 4 Day2」黄金田地 | 0 | 0 | (无) |
| loj5239 「UOI 2020 Stage 4 Day2」石堆配对 | 1 | 1 | 10 |
| loj5240 「UOI 2020 Stage 4 Day2」树的拓扑排序 | 1 | 1 | 10 |
| loj5241 「UOI 2020 Stage 4 Day2」添加边 | 0 | 0 | (无) |
| loj5272 「UOI 2019 Stage 4 Day1」二进制操作 | 0 | 0 | (无) |
| loj5273 「UOI 2019 Stage 4 Day1」科扎克·武斯与编程 | 0 | 0 | (无) |
| loj5274 「UOI 2019 Stage 4 Day1」波托科兰迪亚的航空路线 | 1 | 1 | 10 |
| loj5275 「UOI 2019 Stage 4 Day1」科扎克·武斯与最佳国家 | 0 | 0 | (无) |
| loj5276 「UOI 2019 Stage 4 Day2」管道 | 0 | 0 | (无) |
| loj5277 「UOI 2019 Stage 4 Day2」科扎克·武斯与糖果 | 0 | 0 | (无) |
| loj5278 「UOI 2019 Stage 4 Day2」科扎克·武斯与书籍 | 0 | 0 | (无) |
| loj5279 「UOI 2019 Stage 4 Day2」皮罗格兰迪亚 | 0 | 0 | (无) |
| loj5447 「UOI 2018 Stage 4 Day1」披萨 | 0 | 0 | (无) |
| loj5448 「UOI 2018 Stage 4 Day1」玛莎和小黄人 | 0 | 0 | (无) |
| loj5449 「UOI 2018 Stage 4 Day1」章鱼 | 0 | 0 | (无) |
| loj5450 「UOI 2018 Stage 4 Day1」谢尔盖和树 | 0 | 0 | (无) |
| loj5451 「UOI 2018 Stage 4 Day2」出租车 | 0 | 0 | (无) |
| loj5452 「UOI 2018 Stage 4 Day2」公交路线 | 0 | 0 | (无) |
| loj5453 「UOI 2018 Stage 4 Day2」文本编辑器 | 0 | 0 | (无) |
| loj5454 「UOI 2018 Stage 4 Day2」奥莉娅与平面 | 0 | 0 | (无) |
| loj5469 「UOI 2017 Stage 4 Day1」保险箱 | 0 | 0 | (无) |
| loj5470 「UOI 2017 Stage 4 Day1」游戏 | 0 | 0 | (无) |
| loj5471 「UOI 2017 Stage 4 Day1」衣柜 | 0 | 0 | (无) |
| loj5472 「UOI 2017 Stage 4 Day1」银行 | 0 | 0 | (无) |
| loj5473 「UOI 2017 Stage 4 Day2」金字塔 | 0 | 0 | (无) |
| loj5474 「UOI 2017 Stage 4 Day2」OrangeBook 和贴纸 | 0 | 0 | (无) |
| loj5475 「UOI 2017 Stage 4 Day2」场 | 0 | 0 | (无) |
| loj5476 「UOI 2017 Stage 4 Day2」生日派对 | 0 | 0 | (无) |
| loj5477 「UOI 2016 Stage 4 Day1」硬汉俱乐部 | 0 | 0 | (无) |
| loj5478 「UOI 2016 Stage 4 Day1」钟表 | 0 | 0 | (无) |
| loj5479 「UOI 2016 Stage 4 Day1」子数 | 0 | 0 | (无) |
| loj5480 「UOI 2016 Stage 4 Day1」抢劫 | 0 | 0 | (无) |
| loj5481 「UOI 2016 Stage 4 Day1」机器人 | 0 | 0 | (无) |
| loj5482 「UOI 2016 Stage 4 Day1」地铁 | 0 | 0 | (无) |
| loj5483 「UOI 2016 Stage 4 Day1」拉夫鲁什卡与数组划分 | 0 | 0 | (无) |
| loj5484 「UOI 2016 Stage 4 Day1」卵石自动机 | 0 | 0 | (无) |