七里笑

WOJ

C语言基础(1) UVa(4) 笔试(11)

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全部文章 / WOJ （共144篇）

WOJ1274-Sum of Different Primes

A positive integer may be expressed as a sum of different prime numbers (primes), in one way or another. Given two positive integers n and k, you shou...

2017-09-08

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WOJ1271-How I Wonder What You Are

One of the questions children often ask is ?How many stars are there in the sky?? Under ideal conditions, even with the naked eye, nearly eight thousa...

2017-09-08

0 485

WOJ1254-The Counting Problem

Given two integers a and b, we write the numbers between a and b, inclusive, in a list. Your task is to calculate the number of occurrences of each di...

2017-09-08

0 532

WOJ1224-City Horizon

Farmer John has taken his cows on a trip to the city! As the sun sets, the cows gaze at the city horizon and observe the beautiful silhouettes formed ...

2017-09-08

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WOJ1223-Dining

Cows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others. Farmer John has cooked fabulou...

2017-09-08

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WOJ1269-Inversion

The inversion number of an integer sequence a1, a2, . . . , an is the number of pairs (ai, aj) that satisfy i < j and ai > aj . Given n and the ...

2017-09-07

0 442

WOJ1268-Game of Connections

This is a small but ancient game. You are supposed to write down the numbers 1, 2, 3, . . . , 2n - 1, 2n consecutively in clockwise order on the groun...

2017-09-07

0 458

WOJ1265-Recaman's Sequence

The Recaman's sequence is defined by a0 = 0 ; for m > 0, am = am−1 − m if the rsulting am is positive and not already in the sequence, otherwise am...

2017-09-07

0 517

WOJ1262-Matrix

Given an n*n matrix A, whose entries Ai,j are integer numbers ( 0 <= i < n, 0 <= j < n ). An operation SHIFT at row i ( 0 <= i < n )...

2017-09-07

0 708

WOJ1240-Perfect Service

A network is composed of N computers connected by N - 1 communication links such that any two computers can be communicated via a unique route. Two co...

2017-09-07

0 433