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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 14.11.2024 07:58:51 (j3).
Десктопная версия, переключиться на мобильную.
При поддержке
First, navigate to the stdc++.h file. This will be located at a directory similar to C:\MinGW\lib\gcc\mingw32\6.3.0\include\c++\mingw32\bits. Right click while pressing Shift to open a Powershell/cmd window there. Run the command g++ -std=c++17 stdc++.h, to compile the header. Take care to use the same flags you used in your build system(i.e use c++14 in command if you have build up of c++14). Check to make sure that the stdc++.h.gch file was created in the directory. Also,use "bits/stdc++.h" instead of <bits/stdc++.h> in header
Thanks, man! This is so fast! BTW, <bits/stdc++.h> runs in the same time as "bits/stdc++.h" so what is the difference?
Actually I have read in this blog Link,according to this "bits/stdc++.h" use precompiled headers whereas <bits/stdc++.h> doesn't. IDK what's actual mechanism happening but in my case "bits/stdc++.h" working very good so I recommend that.
'Take care to use the flags' what is this step mean ? And how can I be sure that I'm using the precompiled headers rajkumar62506
1)take care of flags means which c++ version you are using.if you are using c++14 then run command will be g++ -std=c++14 stdc++.h. 2)This info you can find on google by reading few blogs,once I was searching about precompiling header I was found it but I was not understood.But I can easily detect it by huge difference in compiling time.
click
When I try to compile it using command prompt, I get this error "The term 'g++' is not recognized as the name of a cmdlet, function, script file...". Any solution?
I compiled the header, but .gch is not created. Any solution?
Go to /usr/include/x86_64-linux-gnu/c++/9/bitsGo to C:\MinGW\lib\gcc\mingw32\6.3.0\include\c++\mingw32\bitsThen run this command
g++ -std=c++17 stdc++.hin your terminal or cmd, it will create stdc++.h.gch file. That's all. It will boost your compile time 8x faster.Thanks a lot, I was searching for this in Ubuntu!