題意:給定n盞燈,m個開關下面m行給出每個開關可以控制哪些燈(即按下此開關,這些燈的狀態會改變)下面q個詢問:一行一個詢問,一個詢問n個數字表示燈的
Problem Description Given three strings, you are to determine whether the third
題目: Tr A Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/3
What Are You Talking AboutTime Limit: 10000/5000 MS (Java/Others) Memory Limit:
題意: n個雷,分別在a[1]...a[n] ,走一步概率為 p ,走兩步概率為 1-p ,一開始在 1 號位置,問安全到達終點的概率。思路:將整個過程劃分成階
MatrixTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/O