Submission #1535319
Source Code Expand
//by yjz
#include<bits/stdc++.h>
using namespace std;
#define FF first
#define SS second
#define PB push_back
#define MP make_pair
#define bged(v) (v).begin(),(v).end()
#define foreach(it,s) for(__typeof((s).begin()) it=(s).begin();it!=(s).end();it++)
typedef long long ll;
const int Imx=2147483647;
const ll Lbig=2e18;
const int mod=1e9+7;
//My i/o stream
struct fastio
{
char s[100000];
int it,len;
fastio(){it=len=0;}
inline char get()
{
if(it<len)return s[it++];it=0;
len=fread(s,1,100000,stdin);
if(len==0)return EOF;else return s[it++];
}
bool notend()
{
char c=get();
while(c==' '||c=='\n')c=get();
if(it>0)it--;
return c!=EOF;
}
}_buff;
#define geti(x) x=getnum()
#define getii(x,y) geti(x),geti(y)
#define getiii(x,y,z) getii(x,y),geti(z)
#define puti(x) putnum(x),putchar(' ')
#define putii(x,y) puti(x),puti(y)
#define putiii(x,y,z) putii(x,y),puti(z)
#define putsi(x) putnum(x),putchar('\n')
#define putsii(x,y) puti(x),putsi(y)
#define putsiii(x,y,z) putii(x,y),putsi(z)
inline ll getnum()
{
ll r=0;bool ng=0;char c;c=_buff.get();
while(c!='-'&&(c<'0'||c>'9'))c=_buff.get();
if(c=='-')ng=1,c=_buff.get();
while(c>='0'&&c<='9')r=r*10+c-'0',c=_buff.get();
return ng?-r:r;
}
template<class T> inline void putnum(T x)
{
if(x<0)putchar('-'),x=-x;
register short a[20]={},sz=0;
while(x)a[sz++]=x%10,x/=10;
if(sz==0)putchar('0');
for(int i=sz-1;i>=0;i--)putchar('0'+a[i]);
}
inline char getreal(){char c=_buff.get();while(c==' '||c=='\n')c=_buff.get();return c;}
int n,k;
char s[200111];
char getst(int x,int dlt)
{
if(x+dlt>n)return (n-x)%2+'A';
else return ((s[x+dlt]-'A')^(dlt%2))+'A';
}
char ans[200111];
int main()
{
scanf("%d%d",&n,&k);
scanf("%s",s+1);
int dlt=0;
bool f=0;
while(k--)
{
if(dlt>=n)
{
f=k%2;
break;
}
else
{
if(((getst(1,dlt)-'A')^f)==0)
{
f^=1;
}
else
{
dlt++;
f=0;
}
}
}
for(int i=1;i<=n;i++)ans[i]=getst(i,dlt);
if(f)
{
ans[1]=((ans[1]-'A')^1)+'A';
}
printf("%s\n",ans+1);
return 0;
}
Submission Info
Submission Time
2017-08-24 00:11:10+0900
Task
D - Half Reflector
User
fizzydavid
Language
C++14 (GCC 5.4.1)
Score
0
Code Size
2113 Byte
Status
WA
Exec Time
4 ms
Memory
768 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:70:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&k);
^
./Main.cpp:71:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%s",s+1);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 900
Status
Set Name
Test Cases
Sample
sample1.txt, sample2.txt, sample3.txt
All
sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in41.txt, in42.txt, in5.txt, in543.txt, in557.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt
Case Name
Status
Exec Time
Memory
in1.txt
AC
1 ms
256 KB
in10.txt
WA
3 ms
768 KB
in11.txt
WA
4 ms
768 KB
in12.txt
WA
3 ms
768 KB
in13.txt
WA
3 ms
768 KB
in14.txt
AC
4 ms
768 KB
in15.txt
WA
3 ms
768 KB
in16.txt
AC
3 ms
768 KB
in17.txt
AC
3 ms
768 KB
in18.txt
AC
3 ms
768 KB
in19.txt
AC
2 ms
768 KB
in2.txt
AC
2 ms
512 KB
in20.txt
AC
3 ms
768 KB
in21.txt
AC
3 ms
768 KB
in22.txt
WA
4 ms
768 KB
in23.txt
WA
4 ms
768 KB
in24.txt
WA
4 ms
768 KB
in25.txt
WA
4 ms
768 KB
in26.txt
WA
4 ms
768 KB
in27.txt
WA
4 ms
768 KB
in28.txt
AC
3 ms
768 KB
in29.txt
AC
3 ms
768 KB
in3.txt
AC
3 ms
768 KB
in30.txt
AC
3 ms
768 KB
in31.txt
AC
3 ms
768 KB
in32.txt
AC
3 ms
768 KB
in33.txt
AC
3 ms
768 KB
in34.txt
AC
3 ms
768 KB
in35.txt
AC
4 ms
768 KB
in36.txt
AC
4 ms
768 KB
in37.txt
AC
4 ms
768 KB
in38.txt
WA
4 ms
768 KB
in39.txt
AC
3 ms
768 KB
in4.txt
WA
4 ms
768 KB
in40.txt
AC
3 ms
768 KB
in41.txt
AC
3 ms
768 KB
in42.txt
AC
3 ms
768 KB
in5.txt
AC
4 ms
768 KB
in543.txt
AC
2 ms
768 KB
in557.txt
AC
2 ms
768 KB
in6.txt
WA
1 ms
256 KB
in7.txt
AC
3 ms
768 KB
in8.txt
AC
4 ms
768 KB
in9.txt
AC
3 ms
768 KB
sample1.txt
AC
1 ms
256 KB
sample2.txt
AC
1 ms
256 KB
sample3.txt
AC
1 ms
256 KB