-
Notifications
You must be signed in to change notification settings - Fork 0
/
Q2503.java
93 lines (79 loc) · 2.22 KB
/
Q2503.java
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
package olympiad;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.StringTokenizer;
public class Q2503 {
private static final int LENGTH = 3;
private static class Baseball {
int strike;
int ball;
HashMap<Integer, Integer> hm;
public Baseball(int number, int strike, int ball) {
this.strike = strike;
this.ball = ball;
hm = new HashMap<Integer, Integer>();
for (int i = 0; i < LENGTH; i++) {
hm.put(number % 10, i);
number /= 10;
}
}
public boolean isCorrect(int number) {
int strike = 0;
int ball = 0;
for (int i = 0; i < LENGTH; i++) {
int target = number % 10;
if (hm.containsKey(target)) {
if (hm.get(target) == i)
strike++;
else
ball++;
}
number /= 10;
}
if (strike == this.strike && ball == this.ball)
return true;
return false;
}
}
// it works for only LENGTH = 3
private static boolean isDuplication(int number) {
int a = number % 10;
int b = number / 10 % 10;
int c = number / 100 % 10;
return a == b || b == c || c == a || a == 0 || b == 0 || c == 0;
}
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
StringTokenizer st;
int counter = 0;
int N = Integer.parseInt(br.readLine());
Baseball baseball[] = new Baseball[N];
for (int i = 0; i < N; i++) {
st = new StringTokenizer(br.readLine());
int number = Integer.parseInt(st.nextToken());
int strike = Integer.parseInt(st.nextToken());
int ball = Integer.parseInt(st.nextToken());
baseball[i] = new Baseball(number, strike, ball);
}
for (int i = 123; i <= 987; i++) {
if (isDuplication(i))
continue;
boolean isCorrect = true;
for (int j = 0; j < N; j++) {
isCorrect = baseball[j].isCorrect(i);
if (!isCorrect)
break;
}
if (isCorrect)
counter++;
}
bw.write(counter + "\n");
br.close();
bw.close();
}
}