結果
| 問題 |
No.762 PDCAパス
|
| コンテスト | |
| ユーザー |
tenten
|
| 提出日時 | 2022-10-06 12:54:12 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 342 ms / 2,000 ms |
| コード長 | 2,351 bytes |
| コンパイル時間 | 5,572 ms |
| コンパイル使用メモリ | 80,704 KB |
| 実行使用メモリ | 66,084 KB |
| 最終ジャッジ日時 | 2025-01-02 23:32:28 |
| 合計ジャッジ時間 | 14,099 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 38 |
ソースコード
import java.io.*;
import java.util.*;
public class Main {
static final int MOD = 1000000007;
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
int m = sc.nextInt();
char[] types = sc.next().toCharArray();
ArrayList<ArrayList<Integer>> graph = new ArrayList<>();
for (int i = 0; i < n; i++) {
graph.add(new ArrayList<>());
}
long[] pcounts = new long[n];
long[] acounts = new long[n];
for (int i = 0; i < m; i++) {
int a = sc.nextInt() - 1;
int b = sc.nextInt() - 1;
if (types[a] == 'D') {
if (types[b] == 'P') {
pcounts[a]++;
} else if (types[b] == 'C') {
graph.get(a).add(b);
}
} else if (types[a] == 'C') {
if (types[b] == 'A') {
acounts[a]++;
} else if (types[b] == 'D') {
graph.get(b).add(a);
}
} else if (types[a] == 'P') {
if (types[b] == 'D') {
pcounts[b]++;
}
} else if (types[a] == 'A') {
if (types[b] == 'C') {
acounts[b]++;
}
}
}
long ans = 0;
for (int i = 0; i < n; i++) {
for (int x : graph.get(i)) {
ans += pcounts[i] * acounts[x];
ans %= MOD;
}
}
System.out.println(ans);
}
}
class Scanner {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer("");
StringBuilder sb = new StringBuilder();
public Scanner() throws Exception {
}
public int nextInt() throws Exception {
return Integer.parseInt(next());
}
public long nextLong() throws Exception {
return Long.parseLong(next());
}
public double nextDouble() throws Exception {
return Double.parseDouble(next());
}
public String next() throws Exception {
while (!st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine());
}
return st.nextToken();
}
}
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