Submission #1777370
Source Code Expand
#include<bits/stdc++.h>
typedef unsigned int uint;
typedef long long ll;
typedef unsigned long long ull;
typedef double lf;
typedef long double llf;
typedef std::pair<int,int> pii;
#define xx first
#define yy second
template<typename T> inline T max(T a,T b){return a>b?a:b;}
template<typename T> inline T min(T a,T b){return a<b?a:b;}
template<typename T> inline T abs(T a){return a>0?a:-a;}
template<typename T> inline bool repr(T &a,T b){return a<b?a=b,1:0;}
template<typename T> inline bool repl(T &a,T b){return a>b?a=b,1:0;}
template<typename T> inline T gcd(T a,T b){T t;if(a<b){while(a){t=a;a=b%a;b=t;}return b;}else{while(b){t=b;b=a%b;a=t;}return a;}}
template<typename T> inline T sqr(T x){return x*x;}
#define mp(a,b) std::make_pair(a,b)
#define pb push_back
#define I inline
#define mset(a,b) memset(a,b,sizeof(a))
#define mcpy(a,b) memcpy(a,b,sizeof(a))
#define fo0(i,n) for(int i=0,i##end=n;i<i##end;i++)
#define fo1(i,n) for(int i=1,i##end=n;i<=i##end;i++)
#define fo(i,a,b) for(int i=a,i##end=b;i<=i##end;i++)
#define fd0(i,n) for(int i=(n)-1;~i;i--)
#define fd1(i,n) for(int i=n;i;i--)
#define fd(i,a,b) for(int i=a,i##end=b;i>=i##end;i--)
#define foe(i,x)for(__typeof(x.end())i=x.begin();i!=x.end();++i)
struct Cg{I char operator()(){return getchar();}};
struct Cp{I void operator()(char x){putchar(x);}};
#define OP operator
#define RT return *this;
#define RX x=0;char t=P();while((t<'0'||t>'9')&&t!='-')t=P();bool f=0;\
if(t=='-')t=P(),f=1;x=t-'0';for(t=P();t>='0'&&t<='9';t=P())x=x*10+t-'0'
#define RL if(t=='.'){lf u=0.1;for(t=P();t>='0'&&t<='9';t=P(),u*=0.1)x+=u*(t-'0');}if(f)x=-x
#define RU x=0;char t=P();while(t<'0'||t>'9')t=P();x=t-'0';for(t=P();t>='0'&&t<='9';t=P())x=x*10+t-'0'
#define TR *this,x;return x;
I bool IS(char x){return x==10||x==13||x==' ';}template<typename T>struct Fr{T P;I Fr&OP,(int&x)
{RX;if(f)x=-x;RT}I OP int(){int x;TR}I Fr&OP,(ll &x){RX;if(f)x=-x;RT}I OP ll(){ll x;TR}I Fr&OP,(char&x)
{for(x=P();IS(x);x=P());RT}I OP char(){char x;TR}I Fr&OP,(char*x){char t=P();for(;IS(t);t=P());if(~t){for(;!IS
(t)&&~t;t=P())*x++=t;}*x++=0;RT}I Fr&OP,(lf&x){RX;RL;RT}I OP lf(){lf x;TR}I Fr&OP,(llf&x){RX;RL;RT}I OP llf()
{llf x;TR}I Fr&OP,(uint&x){RU;RT}I OP uint(){uint x;TR}I Fr&OP,(ull&x){RU;RT}I OP ull(){ull x;TR}};Fr<Cg>in;
#define WI(S) if(x){if(x<0)P('-'),x=-x;char s[S],c=0;while(x)s[c++]=x%10+'0',x/=10;while(c--)P(s[c]);}else P('0')
#define WL if(y){lf t=0.5;for(int i=y;i--;)t*=0.1;if(x>=0)x+=t;else x-=t,P('-');*this,(ll)(abs(x));P('.');if(x<0)\
x=-x;while(y--){x*=10;x-=floor(x*0.1)*10;P(((int)x)%10+'0');}}else if(x>=0)*this,(ll)(x+0.5);else *this,(ll)(x-0.5);
#define WU(S) if(x){char s[S],c=0;while(x)s[c++]=x%10+'0',x/=10;while(c--)P(s[c]);}else P('0')
template<typename T>struct Fw{T P;I Fw&OP,(int x){WI(10);RT}I Fw&OP()(int x){WI(10);RT}I Fw&OP,(uint x){WU(10);RT}
I Fw&OP()(uint x){WU(10);RT}I Fw&OP,(ll x){WI(19);RT}I Fw&OP()(ll x){WI(19);RT}I Fw&OP,(ull x){WU(20);RT}I Fw&OP()
(ull x){WU(20);RT}I Fw&OP,(char x){P(x);RT}I Fw&OP()(char x){P(x);RT}I Fw&OP,(const char*x){while(*x)P(*x++);RT}
I Fw&OP()(const char*x){while(*x)P(*x++);RT}I Fw&OP()(lf x,int y){WL;RT}I Fw&OP()(llf x,int y){WL;RT}};Fw<Cp>out;
const int N=1000007;
char s[N],t[N];
int n,a[N],b[N];
int main()
{
in,n,s+1,t+1;
bool equ=1;
fo1(i,n)equ&=s[i]==t[i];
if(equ)return puts("0"),0;
int c=0,cur=n;
fd1(i,n)if(t[i]!=t[i-1])
{
b[c]=i;
repl(cur,i);
for(;cur&&t[i]!=s[cur];cur--);
if(!cur)return puts("-1"),0;
a[c++]=cur--;
}
std::reverse(a,a+c);
std::reverse(b,b+c);
int ans=0;
fo0(i,c)
{
int j=i;
for(;j<c&&a[j]-b[i]<j-i;j++);
repr(ans,j-i);
}
out,ans+1,'\n';
}
Submission Info
Submission Time |
|
Task |
F - Shik and Copying String |
User |
mcfx |
Language |
C++14 (GCC 5.4.1) |
Score |
0 |
Code Size |
3713 Byte |
Status |
TLE |
Exec Time |
2103 ms |
Memory |
9984 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
0 / 1500 |
Status |
|
|
Set Name |
Test Cases |
Sample |
example0.txt, example1.txt, example2.txt, example3.txt |
All |
000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, 044.txt, 045.txt, 046.txt, 047.txt, 048.txt, 049.txt, 050.txt, 051.txt, 052.txt, 053.txt, 054.txt, 055.txt, 056.txt, 057.txt, 058.txt, example0.txt, example1.txt, example2.txt, example3.txt |
Case Name |
Status |
Exec Time |
Memory |
000.txt |
AC |
2 ms |
2304 KB |
001.txt |
AC |
2 ms |
2304 KB |
002.txt |
AC |
2 ms |
4352 KB |
003.txt |
AC |
2 ms |
2304 KB |
004.txt |
AC |
2 ms |
4352 KB |
005.txt |
AC |
2 ms |
4352 KB |
006.txt |
AC |
2 ms |
4352 KB |
007.txt |
AC |
2 ms |
4352 KB |
008.txt |
AC |
2 ms |
4352 KB |
009.txt |
AC |
2 ms |
4352 KB |
010.txt |
AC |
2 ms |
4352 KB |
011.txt |
AC |
2 ms |
4352 KB |
012.txt |
AC |
2 ms |
4352 KB |
013.txt |
AC |
2 ms |
4352 KB |
014.txt |
AC |
2 ms |
4352 KB |
015.txt |
AC |
2 ms |
4352 KB |
016.txt |
AC |
2 ms |
4352 KB |
017.txt |
AC |
2 ms |
4352 KB |
018.txt |
AC |
2 ms |
4352 KB |
019.txt |
AC |
2 ms |
4352 KB |
020.txt |
AC |
2 ms |
4352 KB |
021.txt |
AC |
2 ms |
4352 KB |
022.txt |
AC |
2 ms |
4352 KB |
023.txt |
AC |
2 ms |
4352 KB |
024.txt |
AC |
2 ms |
4352 KB |
025.txt |
AC |
19 ms |
3840 KB |
026.txt |
TLE |
2103 ms |
9984 KB |
027.txt |
TLE |
2103 ms |
9856 KB |
028.txt |
AC |
37 ms |
9984 KB |
029.txt |
AC |
53 ms |
9984 KB |
030.txt |
AC |
23 ms |
8448 KB |
031.txt |
AC |
23 ms |
8448 KB |
032.txt |
AC |
23 ms |
8448 KB |
033.txt |
AC |
23 ms |
8448 KB |
034.txt |
AC |
23 ms |
8448 KB |
035.txt |
AC |
23 ms |
8320 KB |
036.txt |
AC |
23 ms |
8320 KB |
037.txt |
AC |
23 ms |
8320 KB |
038.txt |
AC |
23 ms |
8192 KB |
039.txt |
AC |
23 ms |
8192 KB |
040.txt |
AC |
30 ms |
9984 KB |
041.txt |
AC |
35 ms |
9984 KB |
042.txt |
AC |
91 ms |
9984 KB |
043.txt |
AC |
147 ms |
9984 KB |
044.txt |
AC |
580 ms |
9984 KB |
045.txt |
AC |
1098 ms |
9984 KB |
046.txt |
TLE |
2103 ms |
9984 KB |
047.txt |
TLE |
2103 ms |
9984 KB |
048.txt |
TLE |
2103 ms |
9984 KB |
049.txt |
TLE |
2103 ms |
9984 KB |
050.txt |
AC |
23 ms |
9984 KB |
051.txt |
AC |
22 ms |
9984 KB |
052.txt |
AC |
22 ms |
9984 KB |
053.txt |
AC |
171 ms |
9856 KB |
054.txt |
AC |
308 ms |
9984 KB |
055.txt |
AC |
1314 ms |
9984 KB |
056.txt |
TLE |
2103 ms |
9856 KB |
057.txt |
TLE |
2103 ms |
9856 KB |
058.txt |
TLE |
2103 ms |
9856 KB |
example0.txt |
AC |
2 ms |
4352 KB |
example1.txt |
AC |
2 ms |
2304 KB |
example2.txt |
AC |
2 ms |
4352 KB |
example3.txt |
AC |
2 ms |
2304 KB |