Submission #63000024

---

Source Code Expand

#include <bits/stdc++.h>
#define _F(x,y,z) for(int x=y;x<=z;x++)
#define F_(x,z,y) for(int x=z;x>=y;x--)
#define TF(x,y,z) for(int x=head[y],z;x;x=nex[x])

using namespace std;

typedef long long ll;
typedef double dou;
typedef const int ci;
typedef pair<int,int> pii;

ci maxn=2e6+10;

int n;
string s[maxn];
bool cmp(string a,string b)
{
	return a.length()<b.length();
}
int main()
{
	scanf("%d",&n);
	_F(i,1,n)
	{
		cin>>s[i];
	}
	sort(s+1,s+1+n,cmp);
	_F(i,1,n)
	{
		cout<<s[i];
	}
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:23:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   23 |         scanf("%d",&n);
      |         ~~~~~^~~~~~~~~

Judge Result