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- #include <iostream>
- using namespace std;
- int main()
- {
- int N, M, A[N][M], i=0, j, k = 0, p=1;
- cin>>N>>M;
- while (i < N*M)
- {
- k++;
- for (j=k-1;j<M-k+1;j++)
- {
- A[k-1][j]=p;
- p++;
- i++;
- }
- for (j=k;j<N-k+1;j++)
- {
- A[j][M-k]=p;
- p++;
- i++;
- }
- for (j=M-k-1;j>=k-1;j--)
- {
- A[N-k][j]=p;
- p++;
- i++;
- }
- for (j=N-k-1;j>=k;j--)
- {
- A[j][k-1]=p;
- p++;
- i++;
- }
- }
- for (i=0; i<N; i++)
- {
- for (j=0; j<M; j++)
- {
- cout<<A[i][j]<<" ";
- }
- cout<<endl;
- }
- }
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