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Problem Description The counter-terrorists found a time bomb in the dust. But this time the terrorists improve on the time bomb. The number seque... 阅读全文
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Problem Description In many applications very large integers numbers are required. Some of these applications are using keys for secure transmi... 阅读全文
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Problem Description Now you get a number N, and a M-integers set, you should find out how many integers which are small than N, that they can d... 阅读全文
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Problem Description The well-known Fibonacci sequence is defined as following: Here we regard n as the index of the Fibonacci number F(n). ... 阅读全文
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Problem Description We know the Fibonacci Sequence F1=1,F2=1,F3=2,F4=3,F5=5, ... Fx = Fx-1+Fx-2 We want to know the Mth number which has K co... 阅读全文
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Problem Description In mathematics, the Fibonacci numbers are a sequence of numbers named after Leonardo of Pisa, known as Fibonacci (a contracti... 阅读全文
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Problem Description Without expecting, Angel replied quickly.She says: "I'v heard that you'r a very clever boy. So if you wanna me be your GF, yo... 阅读全文
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Problem Description 平面上有n条直线，且无三线共点，问这些直线能有多少种不同交点数。 比如,如果n=2,则可能的交点数量为0(平行)或者1(不平行)。 Input 输入数据包含多个测试实例,每个测试实例占一行,每行包含一个正整数n（n#include#inc... 阅读全文
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Problem Description Given a sequence a[1],a[2],a[3]......a[n], your job is to calculate the max sum of a sub-sequence. For example, given (6,-1,5... 阅读全文
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Problem Description 给你一个m×n的整数矩阵，在上面找一个x×y的子矩阵，使子矩阵中所有元素的和最大。 Input 输入数据的第一行为一个正整数T，表示有T组测试数据。每一组测试数据的第一行为四个正整数m,n,x,y（0#include#include#in... 阅读全文