I write a code for a problem. My roblem is: Enter n x m integers from text file Arrange above integers on the way from from outside to inside in a certain order of the matrix nx m. Export results to a text file. I don't know how to make "input.txt" to make the program run perfectly. If u can, please send me ur file "input.txt" Here is my code: Code: #include <stdio.h> #define MAXN 110 int a[MAXN][MAXN], m, n; void input(){ scanf("%d %d", &n, &m); } void initial(){ int i; for (i = 0; i<=n+1; ++i){ a[i][0]=-1; a[i][m+1]=-1; } for (i = 0; i<=m+1; ++i){ a[0][i]=-1; a[n+1][i]=-1; } } void solve(){ int dx[] = {-1, 0 , 1, 0}; int dy[] = {0, 1, 0, -1}; int tx = 1, ty = 1, dir = 0, i; a[1][1] = 1; for (i = 2; i<=n*m; ++i){ while (a[tx+dx[dir]][ty+dy[dir]]){ dir = (dir+1)%4; } tx = tx + dx[dir]; ty = ty + dy[dir]; a[tx][ty] = i; } } void output(){ int i, j; for (i = 1; i<=n; ++i){ for (j = 1; j<=m; ++j){ printf("%4d ", a[i][j]); } printf("\n"); } } int main(){ freopen("D:\input.txt", "r", stdin); freopen("D:\output.txt", "w", stdout); input(); initial(); solve(); output(); return 0; }

The program only reads two integers, so just use Notepad to create input.txt containing something like: Code: 27 36