FastIO For Different Languages in Competitive Programming

Fast Input and output Class for Competitive Coding.

Settings

Competitive Companion

Chrome | Firefox

C++

Install Jhelper plugin and import the Cpp project in Clion

Java

Install CHelper plugin and import the Java Project in Intellij Idea

Kotlin

Create a new Project and use the template file.

Bash testing for C++

In ubuntu we can use the following code to check the time

time ./a.out < in 
time ./generator | ./a

Using generator

#!/bin/bash
g++ -o gen gen.cpp
g++ -o main main.cpp
g++ -o brute brute.cpp
for((i = 1;;++i));do
    echo $i
    ./gen $i > inputt
    diff -w <(./main < inputt) <(./brute < inputt) || break
done

To copy a single file to multiple Files

echo a.cpp b.cpp d.cpp | xargs -n 1 cp template.cpp

Compile

Normal

g++ -O2 -std=c++17 -Wno-unused-result -Wshadow -Wall -o "%e" "%f"

Debugging

g++ -DLOCAL -std=c++17 -Wshadow -Wall -o "%e" "%f" -fsanitize=address -fsanitize=undefined -D_GLIBCXX_DEBUG -g