AtCoder题解—— AtCoder Beginner Contest 181 —— B - Trapezoid Sum题目相关题解报告
题目相关题目链接AtCoder Beginner Contest 181 B 题，https://atcoder.jp/contests/abc181/tasks/abc181_b。Problem StatementWe have a blackboard with nothing written on it. Takahashi will doNoperations to write integers on it.In thei-th operation, he will wri...
