版权声明:wangchong https://blog.csdn.net/wfcn_zyq/article/details/89712213
计蒜客data structure:Code_01
package www.jisuanke.ds;
import java.util.ArrayList;
import java.util.Scanner;
/**
* @author wangchong
* @date 2019/4/30 16:09
* @email [email protected]
* @CSDN https://blog.csdn.net/wfcn_zyq
* @describe
*/
public class Code_01_SpecialMatrix {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n = input.nextInt();
int m = input.nextInt();
ArrayList[] arrayList = new ArrayList[n];
for (int i = 0; i < n; i++) {
arrayList[i] = new ArrayList<Integer>();
}
for (int i = 0; i < m; i++) {
int x = input.nextInt();
int y = input.nextInt();
arrayList[x - 1].add(y);
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < arrayList[i].size(); j++) {
if (j < arrayList[i].size() - 1) {
System.out.print(arrayList[i].get(j) + " ");
} else {
System.out.print(arrayList[i].get(j));
}
}
System.out.println();
}
}
}