Submission #985538


Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>

using namespace std;
typedef long long ll;
typedef pair<int,int> Pi;
#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) x.begin(), x.end()

char S[1000010], T[1000010];
int N;
void solve(){
	scanf("%d%s%s", &N, S+1, T+1);
	if(!strcmp(S+1, T+1)){
		printf("0");
		return;
	}
	int que[1000010], *fr = que, *re = que, ans = 0;
	for(int i=N, j=N;i>=1;i--)if(T[i] != T[i-1]){
		j = min(i, j);
		while(j > 0 && S[j] != T[i])--j;
		if(j == 0){
			printf("-1");
			return;
		}
		while(re < fr && *re - (fr-re) >= i)re++;
		if(i != j){
			*fr++ = j;
			ans = max(ans, (int)(fr - re));
		}
	}
	printf("%d", ans + 1);
}

int main(){
	int Tc = 1; //scanf("%d\n", &Tc);
	for(int tc=1;tc<=Tc;tc++){
		solve();
	}
	return 0;
}

Submission Info

Submission Time
Task F - Shik and Copying String
User molamola
Language C++14 (GCC 5.4.1)
Score 1500
Code Size 1105 Byte
Status AC
Exec Time 25 ms
Memory 6144 KB

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:28:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%s%s", &N, S+1, T+1);
                               ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1500 / 1500
Status
AC × 4
AC × 63
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 3 ms 256 KB
001.txt AC 3 ms 256 KB
002.txt AC 3 ms 256 KB
003.txt AC 3 ms 256 KB
004.txt AC 3 ms 256 KB
005.txt AC 3 ms 256 KB
006.txt AC 2 ms 256 KB
007.txt AC 3 ms 256 KB
008.txt AC 3 ms 256 KB
009.txt AC 3 ms 256 KB
010.txt AC 3 ms 256 KB
011.txt AC 3 ms 256 KB
012.txt AC 3 ms 256 KB
013.txt AC 3 ms 256 KB
014.txt AC 3 ms 256 KB
015.txt AC 3 ms 256 KB
016.txt AC 3 ms 256 KB
017.txt AC 3 ms 256 KB
018.txt AC 3 ms 256 KB
019.txt AC 3 ms 256 KB
020.txt AC 3 ms 256 KB
021.txt AC 3 ms 256 KB
022.txt AC 3 ms 256 KB
023.txt AC 3 ms 256 KB
024.txt AC 3 ms 256 KB
025.txt AC 10 ms 2176 KB
026.txt AC 18 ms 6144 KB
027.txt AC 15 ms 4096 KB
028.txt AC 24 ms 4608 KB
029.txt AC 25 ms 4608 KB
030.txt AC 13 ms 2176 KB
031.txt AC 13 ms 2176 KB
032.txt AC 13 ms 2304 KB
033.txt AC 14 ms 2304 KB
034.txt AC 14 ms 2304 KB
035.txt AC 14 ms 2304 KB
036.txt AC 14 ms 2304 KB
037.txt AC 14 ms 2304 KB
038.txt AC 13 ms 2304 KB
039.txt AC 13 ms 2304 KB
040.txt AC 20 ms 4224 KB
041.txt AC 20 ms 4992 KB
042.txt AC 18 ms 5888 KB
043.txt AC 18 ms 6016 KB
044.txt AC 18 ms 6144 KB
045.txt AC 18 ms 6144 KB
046.txt AC 18 ms 6144 KB
047.txt AC 18 ms 6144 KB
048.txt AC 18 ms 6144 KB
049.txt AC 18 ms 6144 KB
050.txt AC 17 ms 6144 KB
051.txt AC 17 ms 6144 KB
052.txt AC 14 ms 4096 KB
053.txt AC 18 ms 4096 KB
054.txt AC 18 ms 4096 KB
055.txt AC 18 ms 4096 KB
056.txt AC 17 ms 4096 KB
057.txt AC 18 ms 4096 KB
058.txt AC 18 ms 4096 KB
example0.txt AC 3 ms 256 KB
example1.txt AC 2 ms 256 KB
example2.txt AC 3 ms 256 KB
example3.txt AC 3 ms 256 KB