Algorithm-problem/ternarystring.cpp at main · Masterroy1210/Algorithm-problem · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#include<bits/stdc++.h>
using namespace std;


bool checkwindow(int window[]){
	if(window[0]==0&&window[1]>0&&window[2]>0&&window[3]>0)return true;
	else return false;
}


bool checkstr(string s,int mid){
	int i=0,	p=0;
	int n = s.length();
	int window[4]={0};
	for(;i<mid;i++){
		window[s[i]-'0']++;
	}
	if(checkwindow(window))return true;
	for(;i<n;i++){
		window[s[p]-'0']--;
		window[s[i]-'0']++;
		if(checkwindow(window))return true;

		p++;
	}
	return false;
}


int check(string s){
	int lo = 3,hi = s.length(),ans=1e9;
	while(lo<=hi){
			int mid = (lo+hi)/2;
			if(checkstr(s,mid)){
				ans = min(ans,mid);
				hi = mid-1;
			}else{
				lo = mid+1;
			}


	}
	if(ans!=1e9)return ans;
	else return 0;
}


int main(){
	int t;
	cin>>t;
	while(t--){

		string s;
		cin>>s;

		cout<<check(s)<<endl;


	}


	return 0;
}#include<bits/stdc++.h>
using namespace std;


bool checkwindow(int window[]){
	if(window[0]==0&&window[1]>0&&window[2]>0&&window[3]>0)return true;
	else return false;
}


bool checkstr(string s,int mid){
	int i=0,	p=0;
	int n = s.length();
	int window[4]={0};
	for(;i<mid;i++){
		window[s[i]-'0']++;
	}
	if(checkwindow(window))return true;
	for(;i<n;i++){
		window[s[p]-'0']--;
		window[s[i]-'0']++;
		if(checkwindow(window))return true;

		p++;
	}
	return false;
}


int check(string s){
	int lo = 3,hi = s.length(),ans=1e9;
	while(lo<=hi){
			int mid = (lo+hi)/2;
			if(checkstr(s,mid)){
				ans = min(ans,mid);
				hi = mid-1;
			}else{
				lo = mid+1;
			}


	}
	if(ans!=1e9)return ans;
	else return 0;
}


int main(){
	int t;
	cin>>t;
	while(t--){

		string s;
		cin>>s;

		cout<<check(s)<<endl;


	}


	return 0;
}