Submission #1690233
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;} char s[1000111],t[1000111]; int n; int q[1000111],qb,qe; int main() { scanf("%d",&n); scanf("%s",s+1); scanf("%s",t+1); int it=n,ans=0,cnt=0; for(int i=n;i>=1;i--) { while(qb<qe&&q[qb]-(qe-qb)==i)qb++; it=min(it,i); bool flag=0; while(it>=1&&s[it]!=t[i])it--,flag=1; if(it<1) { puts("-1"); return 0; } if(flag) { q[qe++]=it; } ans=max(ans,qe-qb); // cerr<<it<<" "<<i<<" "<<cnt<<endl; } cout<<ans<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Shik and Copying String |
User | fizzydavid |
Language | C++14 (GCC 5.4.1) |
Score | 1500 |
Code Size | 2047 Byte |
Status | AC |
Exec Time | 22 ms |
Memory | 6144 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:65:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:66:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s+1); ^ ./Main.cpp:67:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",t+1); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1500 / 1500 | ||||
Status |
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Set Name | Test Cases |
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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 | 2304 KB |
003.txt | AC | 2 ms | 2304 KB |
004.txt | AC | 2 ms | 2304 KB |
005.txt | AC | 2 ms | 2304 KB |
006.txt | AC | 2 ms | 2304 KB |
007.txt | AC | 2 ms | 2304 KB |
008.txt | AC | 2 ms | 2304 KB |
009.txt | AC | 2 ms | 2304 KB |
010.txt | AC | 2 ms | 2304 KB |
011.txt | AC | 2 ms | 2304 KB |
012.txt | AC | 2 ms | 2304 KB |
013.txt | AC | 2 ms | 2304 KB |
014.txt | AC | 2 ms | 2304 KB |
015.txt | AC | 2 ms | 2304 KB |
016.txt | AC | 2 ms | 2304 KB |
017.txt | AC | 2 ms | 2304 KB |
018.txt | AC | 2 ms | 2304 KB |
019.txt | AC | 2 ms | 2304 KB |
020.txt | AC | 2 ms | 2304 KB |
021.txt | AC | 2 ms | 2304 KB |
022.txt | AC | 2 ms | 2304 KB |
023.txt | AC | 2 ms | 2304 KB |
024.txt | AC | 2 ms | 2304 KB |
025.txt | AC | 9 ms | 4096 KB |
026.txt | AC | 12 ms | 6144 KB |
027.txt | AC | 12 ms | 6016 KB |
028.txt | AC | 22 ms | 6144 KB |
029.txt | AC | 22 ms | 6144 KB |
030.txt | AC | 11 ms | 4224 KB |
031.txt | AC | 11 ms | 4352 KB |
032.txt | AC | 13 ms | 4480 KB |
033.txt | AC | 13 ms | 4480 KB |
034.txt | AC | 13 ms | 4480 KB |
035.txt | AC | 13 ms | 4480 KB |
036.txt | AC | 13 ms | 4352 KB |
037.txt | AC | 13 ms | 4352 KB |
038.txt | AC | 13 ms | 4352 KB |
039.txt | AC | 12 ms | 4352 KB |
040.txt | AC | 20 ms | 6144 KB |
041.txt | AC | 17 ms | 6144 KB |
042.txt | AC | 14 ms | 6144 KB |
043.txt | AC | 13 ms | 6144 KB |
044.txt | AC | 12 ms | 6144 KB |
045.txt | AC | 13 ms | 6144 KB |
046.txt | AC | 12 ms | 6144 KB |
047.txt | AC | 13 ms | 6144 KB |
048.txt | AC | 12 ms | 6144 KB |
049.txt | AC | 12 ms | 6144 KB |
050.txt | AC | 12 ms | 6144 KB |
051.txt | AC | 12 ms | 6144 KB |
052.txt | AC | 10 ms | 6016 KB |
053.txt | AC | 17 ms | 6016 KB |
054.txt | AC | 17 ms | 6016 KB |
055.txt | AC | 17 ms | 6016 KB |
056.txt | AC | 17 ms | 6016 KB |
057.txt | AC | 17 ms | 6016 KB |
058.txt | AC | 17 ms | 6016 KB |
example0.txt | AC | 2 ms | 2304 KB |
example1.txt | AC | 2 ms | 2304 KB |
example2.txt | AC | 2 ms | 2304 KB |
example3.txt | AC | 2 ms | 2304 KB |