Submission #66545483

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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])
#define GF(x,y,z) for(int x:z[y])

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,tg;
char s[maxn];
void work()
{
	scanf("%d",&n);
	tg=0;
	scanf("%s",s+1);
	_F(i,1,n-1)
	{
		if(s[i]>s[i+1])
			swap(s[i],s[i+1]),tg=1;
		else if(tg&&s[i]==s[i+1])
			swap(s[i],s[i+1]);
		else if(tg)
		{
			printf("%s\n",s+1);
			return ;
		}
	}
	if(tg||n==1)
		printf("%s\n",s+1);
	else
	{
		printf("%s\n",s+1);
	}
	return ;
}
int main()
{
	int t;
	scanf("%d",&t);
	while(t--)
		work();
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘void work()’:
Main.cpp:20:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |         scanf("%d",&n);
      |         ~~~~~^~~~~~~~~
Main.cpp:22:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   22 |         scanf("%s",s+1);
      |         ~~~~~^~~~~~~~~~
Main.cpp: In function ‘int main()’:
Main.cpp:46:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   46 |         scanf("%d",&t);
      |         ~~~~~^~~~~~~~~

Judge Result