UVa 488 - Triangle Wave

Accepted date: 2012-02-11
Ranking (as of 2013-06-09): 460 out of 8889
Language: C++

/*
  UVa 488 - Triangle Wave

  To build using Visual Studio 2008:
    cl -EHsc -O2 triangle_wave.cpp
*/

#include <iostream>
using namespace std;

const char* waves[] = {
  "",
  "1\n",
  "1\n22\n1\n",
  "1\n22\n333\n22\n1\n",
  "1\n22\n333\n4444\n333\n22\n1\n",
  "1\n22\n333\n4444\n55555\n4444\n333\n22\n1\n",
  "1\n22\n333\n4444\n55555\n666666\n55555\n4444\n333\n22\n1\n",
  "1\n22\n333\n4444\n55555\n666666\n7777777\n666666\n55555\n4444\n333\n22\n1\n",
  "1\n22\n333\n4444\n55555\n666666\n7777777\n88888888\n7777777\n666666\n55555\n4444\n333\n22\n1\n",
  "1\n22\n333\n4444\n55555\n666666\n7777777\n88888888\n999999999\n88888888\n7777777\n666666\n55555\n4444\n333\n22\n1\n"
};

int main()
{
  int nr_cases;
  cin >> nr_cases;
  while (nr_cases--) {
    int amplitude, frequency;
    cin >> amplitude >> frequency;
    if (amplitude < 0)
      amplitude = 0;
    const char* w = waves[amplitude];
    for (int f = 0; f < frequency; f++) {
      if (f)
        cout << endl;
      cout << w;
    }
    if (nr_cases)
      cout << endl;
        // outputs of two consecutive cases will be separated by a blank line
  }
  return 0;
}