[Notes] About the usage of sscanf and sprintf

The usage of sscanf and sprintf
sscanf is to write str to n in the format of "%d" (from left to right)

Code

​
//#include<bits/stdc++.h>  
#include<cstdio>
#include<iostream>
#include<cstring>

using namespace std;


int main()
{
	char str[100]="11111";
	int n;
	sscanf(str,"%d",&n);
	cout<<n;
}

​

Sprintf writes n into str in the format of "%d" (executed from right to left)

Code

//#include<bits/stdc++.h>  
#include<cstdio>
#include<iostream>
#include<cstring>

using namespace std;


int main()
{
	char str[100];
	int n=11111;
	sprintf(str,"%d",n);
	cout<<str;
}