Submission #1864428

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Source Code Expand

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define per(i,a,b) for(int i=(a);i>=(b);i--)
#define forE(i,x) for(int i=head[x];i!=-1;i=ne[i])
using namespace std;
typedef long long i64;
typedef unsigned long long u64;
typedef unsigned u32;
typedef pair<int,int> pin;
#define mk(a,b) make_pair(a,b)
#define lowbit(x) ((x)&(-(x)))
#define sqr(a) ((a)*(a))
#define clr(a) (memset((a),0,sizeof(a)))
#define ls ((x)<<1)
#define rs (((x)<<1)|1)
#define mid (((l)+(r))>>1)
#define pb push_back
#define w1 first
#define w2 second
inline void read(int &x){
	x=0;int f=1;char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	x*=f;
}
inline void judge(){
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout);
}
/*******************************head*******************************/
const int maxn=1000005;
char s[maxn];
int a[maxn],q[maxn],n,m;
inline void solve(int k){
	int l=1,r=n,tag=0;
	rep(i,1,n)q[i]=s[i]-'A';
	rep(i,1,k){
		if((tag^q[l])==0)
			q[l]^=1;
		else{
			l++;tag^=1;
			q[++r]=tag;
		}
	}
	rep(i,1,n)a[i]=q[l+i-1]^tag;
}
int main(){
//	judge();
	read(n);read(m);scanf("%s",s+1);
	if(m<=2*n)
		solve(m);
	else 
		if(m&1)
			solve(2*n-1);
		else
			solve(2*n);
	rep(i,1,n)putchar('A'+a[i]);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:49:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  read(n);read(m);scanf("%s",s+1);
                                 ^

Judge Result