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Submission #793978

# Submission time Handle Problem Language Result Execution time Memory
793978 2023-07-26T08:26:37 Z 곰(#10095) Flip it and Stick it (CCO23_day2problem1) C++17
18 / 25
 4 ms 1500 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
using pll=array<ll,2>;
const ll inf=1e18;
const int N=2e5+5;
string s,t;
int n,m,a[N],b[N];
int ans,cur;
int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	cin>>s>>t;
	n=s.size();
	m=t.size();
	if(n<m){
		cout<<0;
		return 0;
	}
	for(int i=1;i<=n;i++) a[i]=s[i-1]-'0';
	for(int i=1;i<=m;i++) b[i]=t[i-1]-'0';
	if(b[1]==1){
		for(int i=1;i<=n;i++) a[i]^=1;
		for(int i=1;i<=m;i++) b[i]^=1;
	}
	if(m==1){
		for(int i=1;i<=n;i++) if(a[i]==b[1]) ans=-1;
	} else if(m==2){
		if(!b[2]){
			int cnt0=0;
			for(int i=1;i<=n;i++){
				if(!a[i]) cnt0++;
				if(i<n&&!a[i]&&!a[i+1]) ans++;
			}
			if(cnt0>(n+1)/2) ans=-1;
		} else{
			for(int i=1;i<=n;i++){
				int j=i;
				while(j+1<=n&&a[i]==a[j+1]) j++;
				if(i!=1&&a[i]) ans++;
				i=j;
			}
		}
	} else{
		if(b[1]!=b[3]){
			if(!b[2]){
				for(int i=1;i<=n;i++) a[i]^=1;
				for(int i=1;i<=m;i++) b[i]^=1;
				reverse(a+1,a+n+1);
				reverse(b+1,b+m+1);
			}
			for(int i=1;i<=n;i++){
				int j=i;
				while(j+1<=n&&a[i]==a[j+1]) j++;
				if(i!=1&&a[i]&&i<j) ans++;
				i=j;
			}
		} else if(b[2]){
			for(int i=2;i<n;i++) if(!a[i-1]&&a[i]&&!a[i+1]) ans++;
			ans=(ans+1)/2;
		}
	}
	cout<<ans;
	return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 264 KB Output is correct
3 Correct 2 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 2 ms 1500 KB Output is correct
6 Correct 2 ms 1372 KB Output is correct
7 Correct 2 ms 1352 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 1448 KB Output is correct
7 Correct 2 ms 1372 KB Output is correct
8 Correct 2 ms 1372 KB Output is correct
9 Correct 3 ms 1372 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 1448 KB Output is correct
7 Correct 2 ms 1372 KB Output is correct
8 Correct 2 ms 1372 KB Output is correct
9 Correct 3 ms 1372 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 1372 KB Output is correct
21 Correct 1 ms 1500 KB Output is correct
22 Correct 2 ms 1392 KB Output is correct
23 Correct 3 ms 1352 KB Output is correct
24 Correct 2 ms 1372 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 2 ms 1404 KB Output is correct
27 Correct 3 ms 1372 KB Output is correct
28 Correct 3 ms 1484 KB Output is correct
29 Correct 2 ms 1328 KB Output is correct
30 Correct 1 ms 1372 KB Output is correct
31 Correct 2 ms 1372 KB Output is correct
32 Correct 2 ms 1372 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 2 ms 1388 KB Output is correct
8 Correct 2 ms 1356 KB Output is correct
9 Correct 3 ms 1500 KB Output is correct
10 Correct 2 ms 1424 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 2 ms 1372 KB Output is correct
13 Correct 2 ms 1372 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 1500 KB Output is correct
11 Correct 1 ms 1372 KB Output is correct
12 Correct 4 ms 1368 KB Output is correct
13 Correct 2 ms 1372 KB Output is correct
14 Correct 2 ms 1372 KB Output is correct
15 Correct 2 ms 1372 KB Output is correct
16 Correct 2 ms 1372 KB Output is correct
17 Correct 3 ms 1372 KB Output is correct
18 Correct 1 ms 1372 KB Output is correct
19 Correct 2 ms 1372 KB Output is correct
20 Correct 2 ms 1372 KB Output is correct
21 Correct 1 ms 1372 KB Output is correct
22 Correct 2 ms 1372 KB Output is correct

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 2 ms 1388 KB Output is correct
8 Correct 2 ms 1356 KB Output is correct
9 Correct 3 ms 1500 KB Output is correct
10 Correct 2 ms 1424 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 2 ms 1372 KB Output is correct
13 Correct 2 ms 1372 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 336 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 2 ms 1500 KB Output is correct
24 Correct 1 ms 1372 KB Output is correct
25 Correct 4 ms 1368 KB Output is correct
26 Correct 2 ms 1372 KB Output is correct
27 Correct 2 ms 1372 KB Output is correct
28 Correct 2 ms 1372 KB Output is correct
29 Correct 2 ms 1372 KB Output is correct
30 Correct 3 ms 1372 KB Output is correct
31 Correct 1 ms 1372 KB Output is correct
32 Correct 2 ms 1372 KB Output is correct
33 Correct 2 ms 1372 KB Output is correct
34 Correct 1 ms 1372 KB Output is correct
35 Correct 2 ms 1372 KB Output is correct
36 Incorrect 0 ms 212 KB Output isn't correct
37 Halted 0 ms 0 KB -