Category: codeforces

The problem is from codeforces: http://www.codeforces.com/problemset/problem/125/B The given input has no format errors, which makes it easy to solve because you don’t have to consider unregular situations such as …

The problem is from codeforces: http://www.codeforces.com/problemset/problem/1/A Given the size of the area and the size of the flag stone, you are asked to compute the minimal number of flagstones …

The problem is from codeforces: http://www.codeforces.com/problemset/problem/75/A The input two numbers can be held by 32-bit signed integer. Therefore, it is unnecessary to use arrays to represent numbers as strings. …

The problem is from codeforces: http://www.codeforces.com/problemset/problem/151/A Based on the Note, it is purely a math problem (the equations can be easily derived.) The Python solution can be easily obtained. …

The problem is from codeforces: http://www.codeforces.com/problemset/problem/192/A The given input to this problem can be held by a four-byte integer (32-bit). It is to search for two numbers and such …