43 lines
797 B
C
43 lines
797 B
C
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/* Driver for routine indexx */
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#include <stdio.h>
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#include <stdlib.h>
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#define NRANSI
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#include "nr.h"
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#include "nrutil.h"
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#define NP 100
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#define MAXSTR 80
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int main(void)
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{
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char txt[MAXSTR];
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unsigned long i,j,*indx;
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float *a;
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FILE *fp;
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indx=lvector(1,NP);
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a=vector(1,NP);
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if ((fp = fopen("tarray.dat","r")) == NULL)
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nrerror("Data file tarray.dat not found\n");
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fgets(txt,MAXSTR,fp);
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for (i=1;i<=NP;i++) fscanf(fp,"%f",&a[i]);
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fclose(fp);
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indexx(NP,a,indx);
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printf("\noriginal array:\n");
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for (i=0;i<=9;i++) {
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for (j=1;j<=10;j++) printf("%7.2f",a[10*i+j]);
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printf("\n");
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}
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printf("\nsorted array:\n");
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for (i=0;i<=9;i++) {
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for (j=1;j<=10;j++) printf("%7.2f",a[indx[10*i+j]]);
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printf("\n");
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}
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free_vector(a,1,NP);
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free_lvector(indx,1,NP);
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return 0;
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}
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#undef NRANSI
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