C. Day at the Beach

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends were unable to ride waves. However, they decided to spent their time …

B. Spongebob and Joke

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

While Patrick was gone shopping, Spongebob decided to play a little trick on his friend. The naughty Sponge browsed through Patrick's personal stuff and found a sequence _a_1, _a_2, ..., …

c语言上机。。。。

c写的幻方。

  1<span style="color: #008080;">  1</span> <span style="color: #008000;">/*</span><span style="color: #008000;">************************************************************************
  2</span><span …

C. A Problem about Polyline

time limit per test

1 second

memory limit per test

256 megabytes

input

standard input

output

standard output

There is a polyline going through points (0, 0) - (x, x) - (2_x_, 0) - (3_x_, x) - (4_x_, 0) - ... - (2_kx_, 0) - (2_kx_ + x, x) - ....

We know that the polyline passes through the …

Max Angle

**Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 678 Accepted Submission(s): 238
**

Problem Description

Given many points in a plane, two players are playing an interesting game.

Player1 selects one point A as the vertex of an angle. Then player2 selects …

Transmitters

Description

In a wireless network with multiple transmitters sending on the same frequencies, it is often a requirement that signals don't overlap, or at least that they don't conflict. One way of …