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C++ tips and tricks for Competitive Programming |
🧵👇
C++ tips and tricks for Competitive Programming |
🧵👇
1⃣ Use <bits/stdc++.h> Header File
<bits/stdc++.h> is a most commonly and widely used header file in competitive programming world.
It is a header file that includes all the standard libraries.
<bits/stdc++.h> is a most commonly and widely used header file in competitive programming world.
It is a header file that includes all the standard libraries.
2⃣ “\n” versus endl
Both sound the same right but endl takes more execution time than “\n”
Here is the reason: 👇
"\n": it inserts a new line.
"endl": it inserts a new line and flushes the stream.
TIP:
Hence to avoid this mistake we can use define a macro:
#define endl "\n"
Both sound the same right but endl takes more execution time than “\n”
Here is the reason: 👇
"\n": it inserts a new line.
"endl": it inserts a new line and flushes the stream.
TIP:
Hence to avoid this mistake we can use define a macro:
#define endl "\n"
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