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Try fast cin, cout.
Thank you I got AC using fast i/o. Can you tell me why this (std::ios::sync_with_stdio(false);) speeds up input/output also when should we use fast i/o. ( I mean what is the maximum order of data read or written using cin/cout without fast cin/cout).
http://www.cplusplus.com/reference/ios/ios_base/sync_with_stdio/
in MinGW build used by codeforces printf/scanf is much faster than cin/cout even if you'll add sync_with_stdio etc. Tried printing 106 integers in custom test:
cout
— 514 mscout
withsync_with_stdio(false)
— 467 msprintf
— 202 ms