:
. M(m, n) 1 m x n , .
Microsoft Visual Studio 2013 ( Win32 Console Application) (Empty project). .cpp, .
:
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char* argv[])
{
int **pMatr;
int n, m;
printf_s("n="); scanf_s("%d", &n);
printf_s("m="); scanf_s("%d", &m);
pMatr = (int **)malloc(n*sizeof(int *));
for (int i = 0; i<n; i++)
pMatr[i] = (int *)malloc(m*sizeof(int));
int i = 0, j = 0, //
minx = 0, maxx = m - 1, miny = 0, maxy = n - 1; //
int step = 1; // ( 1 -1)
bool flag = true; //
// true - false -
for (int k = 0; k<n*m; k++)
{
pMatr[i][j] = k + 1;
if (flag)
{
if (step>0) if (j<maxx) j++;
else {
miny++;
flag = false;
i++;
}
else
if (j>minx) j--;
else {
maxy--;
flag = false;
i--;
}
}
else //
if (step>0) if (i<maxy) i++;
else {
maxx--;
flag = true;
step = -1;
j--;
}
else
if (i>miny) i--;
else {
minx++;
flag = true;
step = 1;
j++;
}
}
for (int i = 0; i<n; i++)
{
for (int j = 0; j<m; j++)
printf_s("%4d", pMatr[i][j]);
printf_s ("\n");
}
//
for (int i = 0; i<n; i++) free(pMatr[i]);
free(pMatr);
system("pause");// ,
return 0;
}
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