SSSTA十一假期算法组训练赛.doc

SSSTA十一假期算法组训练赛A - No Brainer Crawling in process... Crawling failed Time Limit:1000MS???? Memory Limit:30000KB???? 64bit IO Format:%I64d %I64u Submit Status Description Zombies love to eat brains. Yum. Input The first line contains a single integer n indicating the number of data sets. The following n lines each represent a data set. Each data set will be formatted according to the following description: A single data set consists of a line X Y, where X is the number of brains the zombie eats and Y is the number of brains the zombie requires to stay alive. Output For each data set, there will be exactly one line of output. This line will be MMM BRAINS if the number of brains the zombie eats is greater than or equal to the number of brains the zombie requires to stay alive. Otherwise, the line will be NO BRAINS. Sample Input 3 4 5 3 3 4 3 Sample Output NO BRAINS MMM BRAINS MMM BRAINS B - Financial Management Crawling in process... Crawling failed Time Limit:1000MS???? Memory Limit:10000KB???? 64bit IO Format:%I64d %I64u Submit Status Description Larry graduated this year and finally has a job. Hes making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold of his financial portfolio and solve his financing problems. The first step is to figure out whats been going on with his money. Larry has his bank account statements and wants to see how much money he has. Help Larry by writing a program to take his closing balance from each of the past twelve months and calculate his average account balance. Input The input will be twelve lines. Each line will contain the closing balance of his bank account for a particular month. Each number will be positive and displayed to the penny. No dollar sign will be included. Output The output will be a single number, the average (mean) of the closing balances for the twelve months. It will be rounded to the nearest penny, preceded immediately by a dollar sign, and followed