The code I have writen is giving correct answer in my compiler but giving wrong answer in codeforces compiler
question:http://codeforces.com/problemset/problem/676/C mysubbmission:http://codeforces.com/contest/676/submission/20293649 In the first test case my compiler is giving output 4 where as codeforces is giving output as -1.
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Here's your submission passing test 1 : http://codeforces.com/contest/676/submission/20295674
Don't use scanf along with fast I/O for cin.