任务是在不使用++和+运算符的情况下递增数字。
例子:
Input : 3
Output : 4
Input : 9
Output : 10
该想法基于以下事实:负数使用2的补码形式存储。 2的补码形式是通过将位取反然后加1来获得的。因此,如果我们反转给定数字的所有位并应用负号,则会得到数字加1。
C++
// CPP program to increment an unsigned
// int using bitwise operators.
#include
using namespace std;
// function that increment the value.
int increment(unsigned int i)
{
// Invert bits and apply negative sign
i = -(~i);
return i;
}
// Driver code
int main()
{
int n = 3;
cout << increment(n);
return 0;
}
Java
// Java program to increment
// an unsigned int using
// bitwise operators.
import java.io.*;
class GFG
{
// function that increment
// the value.
static long increment(long i)
{
// Invert bits and
// apply negative sign
i = -(~i);
return i;
}
// Driver code
public static void main (String[] args)
{
long n = 3;
System.out.print( increment(n));
}
}
// This code is contributed
// by inder_verma.
Python3
# Python3 program to increment
# an unsigned int using
# bitwise operators.
# function that increment the value.
def increment(i):
# Invert bits and
# apply negative sign
i = -(~i);
return i;
# Driver code
if __name__ == "__main__":
n = 3;
print(increment(n));
# This code is contributed by mits
C#
// C# program to increment
// an unsigned int using
// bitwise operators.
using System;
class GFG
{
// function that increment
// the value.
static long increment(long i)
{
// Invert bits and
// apply negative sign
i = -(~i);
return i;
}
// Driver code
public static void Main ()
{
long n = 3;
Console.WriteLine(increment(n));
}
}
// This code is contributed
// by inder_verma.
PHP
C++
// CPP program to increment an unsigned
// char using bitwise operators.
#include
using namespace std;
// function that increment the value.
char increment(unsigned char i)
{
// Invert bits and apply negative sign
i = -(~i);
return i;
}
// Driver code
int main()
{
char n = 'a';
cout << increment(n);
return 0;
}
Java
// Java program to increment
// an unsigned char using
// bitwise operators.
class GFG
{
// function that increment the value.
static char increment(char i)
{
// Invert bits and apply
// negative sign
int i1 = -(~(int)(i));
return (char)(i1);
}
// Driver code
public static void main(String[] args)
{
char n = 'a';
System.out.println(increment(n));
}
}
// This code is contributed by mits
Python3
# Python3 program to increment
# an unsigned char using
# bitwise operators.
# function that increment
# the value.
def increment(i):
# Invert bits and
# apply negative sign
i = -(~ord(i));
return chr(i);
# Driver code
n = 'a';
print(increment(n));
# This code is contributed by mits
C#
// C# program to increment
// an unsigned char using
// bitwise operators.
class GFG
{
// function that increment the value.
static char increment(char i)
{
// Invert bits and apply
// negative sign
int i1 = -(~(int)(i));
return (char)(i1);
}
// Driver code
static void Main()
{
char n = 'a';
System.Console.WriteLine(increment(n));
}
}
// This code is contributed by mits
PHP
输出:
4
它也适用于字符。
例子:
Input : a
Output : b
Input : o
Output : p
C++
// CPP program to increment an unsigned
// char using bitwise operators.
#include
using namespace std;
// function that increment the value.
char increment(unsigned char i)
{
// Invert bits and apply negative sign
i = -(~i);
return i;
}
// Driver code
int main()
{
char n = 'a';
cout << increment(n);
return 0;
}
Java
// Java program to increment
// an unsigned char using
// bitwise operators.
class GFG
{
// function that increment the value.
static char increment(char i)
{
// Invert bits and apply
// negative sign
int i1 = -(~(int)(i));
return (char)(i1);
}
// Driver code
public static void main(String[] args)
{
char n = 'a';
System.out.println(increment(n));
}
}
// This code is contributed by mits
Python3
# Python3 program to increment
# an unsigned char using
# bitwise operators.
# function that increment
# the value.
def increment(i):
# Invert bits and
# apply negative sign
i = -(~ord(i));
return chr(i);
# Driver code
n = 'a';
print(increment(n));
# This code is contributed by mits
C#
// C# program to increment
// an unsigned char using
// bitwise operators.
class GFG
{
// function that increment the value.
static char increment(char i)
{
// Invert bits and apply
// negative sign
int i1 = -(~(int)(i));
return (char)(i1);
}
// Driver code
static void Main()
{
char n = 'a';
System.Console.WriteLine(increment(n));
}
}
// This code is contributed by mits
的PHP
输出:
b
想要从精选的最佳视频中学习并解决问题,请查看有关从基础到高级C++的C++基础课程以及有关语言和STL的C++ STL课程。要完成从学习语言到DS Algo等的更多准备工作,请参阅“完整面试准备课程” 。