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  1. #include <iostream>
  2. #include <cmath>
  3. #include <string.h>
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     int n,k=0;
  9.     cin >> n;
  10.     while(n--)
  11.     {
  12.         k++;
  13.         char str[20][20],str1[441],str2[441];
  14.         int r,c,count=0;
  15.         cin >> r >> c;
  16.         //nhap ma tran
  17.         for(int i=0;i<r;i++)
  18.             for(int j=0;j<c;j++)
  19.                 cin >> str[i][j];
  20.         //xu ly ma tran xoay oc
  21.         //chuyen cac ki tu dang xoay oc vao 1 xau khac
  22.         int gt=0,t=0,d=r-1,e=c-1;
  23.         while(gt<r*c)
  24.         {
  25.             for(int i=t;i<=e;i++)  //duyet tu trai sang phai
  26.             {
  27.                 str1[gt]=str[t][i];
  28.                 gt++;
  29.             }
  30.             for(int i=t+1;i<=d;i++) //tu tren xuong duoi
  31.             {
  32.                 str1[gt]=str[i][e];
  33.                 gt++;
  34.             }
  35.             for(int i=e-1;i>=t;i--)  //tu phai sang trai
  36.             {
  37.                 str1[gt]=str[d][i];
  38.                 gt++;
  39.             }
  40.             for(int i=d-1;i>t;i--)  //duoi len tren
  41.             {
  42.                 str1[gt]=str[i][t];
  43.                 gt++;
  44.             }
  45.             t++;d--;e--;  //thu nho ma tran
  46.         }
  47.             //xu ly chuyen 5 bit thanh so tuong ung
  48.             for(int i=0;i<r*c;i++)
  49.             {
  50.                 int f=0;
  51.                 int o=4;
  52.                 if((4+i)>r*c-1)  break;
  53.                 for(int j=i;j<=i+4;j++)
  54.                 {
  55.                     f+=(str1[j]-'0')*pow(2,o);
  56.                     o--;
  57.                 }
  58.                 if(f==0) str2[count]=32;  //neu f=0 thi cho thanh ki tu khoang trang
  59.                 else if(f>0)
  60.                     str2[count]=f+64;
  61.                 i+=4;
  62.                 count++;
  63.             }
  64.           cout << k << " ";
  65.           for(int i=0;i<count;i++)
  66.             cout << str2[i];
  67.           cout << endl;
  68.  
  69.     }
  70. }
Success #stdin #stdout 0s 16064KB
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https://ideone.com/nd5cAS
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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