2000 the computer research of Huazhong University of Science and technology real problem symmetry matrix

Topic 1180: Symmetric matrices

time limit:1 seconds

Memory limit:32 MB

Special question: No

submitted:2518

Resolution:1295

Title Description:

Enter an n-dimensional matrix to determine whether it is symmetrical.

Input:

Enter the first line to include a number: N (1<=n<=100), which represents the dimension of the matrix.
The next n rows, each containing the n number, represent the elements of the n*n matrix.

Output:

There may be multiple sets of test data, for each set of data,
Output "yes!" Represents the matrix as a symmetric matrix.
Output "no!" Indicates that the matrix is not a symmetric matrix.

Sample input:

416 19 16 6 19 16 14 5 16 14 16 3 6 5 3 16 21 23 4

Sample output:

yes! No!

Source:

2000 Huazhong University of Science and technology computer research life test real problem

1#include <iostream>2#include <cstring>3#include <cstdio>4 using namespacestd;5 intmap[ the][ the];6 intMain () {7     //freopen ("D:\\input.txt", "R", stdin);8     intN;9      while(cin>>N) {Ten         inti,j; One          for(i=1; i<=n;i++){ A              for(j=1; j<=n;j++){ -scanf"%d",&map[i][j]); -             } the         } -          for(i=1; i<=n;i++){ -              for(j=1; j<=n;j++){ -                 if(map[i][j]!=map[i][n-J]) { +i=n+2; -                      Break; +                 } A             } at         } -         if(i==n+1){ -cout<<"yes!"<<Endl; -             Continue; -         } -          for(i=1; i<=n;i++){ in              for(j=1; j<=n;j++){ -                 if(map[i][j]!=map[n-i] [j]) { toi=n+2; +                      Break; -                 } the             } *         } $         if(i==n+1){Panax Notoginsengcout<<"yes!"<<Endl; -             Continue; the         } +  A          for(i=1; i<=n;i++){ the              for(j=1; j<=n;j++){ +                 if(map[i][j]!=Map[j][i]) { -i=n+2; $                      Break; $                 } -             } -         } the         if(i==n+1){ -cout<<"yes!"<<Endl;Wuyi             Continue; the         } -  Wu          for(i=1; i<=n;i++){ -              for(j=1; j<=n;j++){ About                 if(map[i][j]!=map[n-j][n-i]) { $i=n+2; -                      Break; -                 } -             } A         } +         if(i==n+1){ thecout<<"yes!"<<Endl; -             Continue; $         } thecout<<"no!"<<Endl; the     } the     return 0; the}

2000 the computer research of Huazhong University of Science and technology real problem symmetry matrix