···

include[HTML_REMOVED]

using namespace std;
int str[100][100];
int main()
{
int n,m;
cin>>n>>m;
int dx[]={0,1,0,-1},dy[]={1,0,-1,0};
int x=0,y=0;
for(int a=0,b=0,k=1,d=0;k<=n*m;k)
{
str[x][y]=k;
a=x+dx[d];
b=y+dy[d];
if(a>=n||a<0||b>=m||b<0||str[a][b])
{
d=(d+1)%4;
a=x+dx[d];
b=y+dy[d];
}
x=a;y=b;
}
for(int i=0;i<n;i)
{
for(int j=0;j<m;j++)
cout<<str[i][j]<<’ ‘;
cout<<endl;
}
return 0;
}
···