Hi All,
I have been pulling my hair out trying to figur out this problem. Please help!!! I just started C++

Thank you!
Joe

I need my output to look like this:
The original vector v[] is:
v[] = { 1.05 -2.55 1.75 1.10 -0.75 2.43 -3.55 4.19 1.45 -0.05 } //The issue when I run the code is the first number 0.05 rather than 1.05The rearranged vector v[] is:
v[] = { -3.55 -2.55 -0.75 -0.05 1.05 1.10 1.45 1.75 2.43 4.19 } //The issue when I run is, it is not sorting in this order The length of the vector v[] is 7.11397 //Not sure what this means or how to do this

``````void prob2(void)

{

FILE *infile, *outfile;

int rows, val, rval, j, k, n;

infile = fopen("data.dat", "r");

outfile = fopen("output2.dat", "w");

printf("\nThe original vector v[] is:\n");

fprintf(outfile,"\nThe original vector v[] is:\n");

printf("v[] = {");

fprintf(outfile,"v[] = {");

fscanf(infile, "%d", &rows);

for(k=0; k<10; k++)

{

fscanf(infile, "%lf", &val);

printf(" %.2f", val);

fprintf(outfile," %.2f", val);

}

printf(" }\n");

fprintf(outfile," }\n");

printf("\nThe rearranged vector v[] is:\n");

printf("v[] = {");

double v[]={ 1.05, -2.55, 1.75, 1.10, -0.75, 2.43, -3.55, 4.19, 1.45, -0.05 };

rearr(v,n);

int x;

for(x=0; x<10; x++)

printf(" %.2f", v[x]);

printf(" }");

printf("\n");

}

double rearr(double *v, int n)

{

int i, j, flag=1;

int temp;

for(i=1; i<=10 &&flag; i++)

{

flag = 0;

for(j=0; j<9; j++)

{

if(v[j+1]<v[j])

{

int temp=v[j];

v[j]=v[j+1];

v[j+1]=temp;

flag = 1;

}

}

}

return;

}

void matrix1(double **A, double **B, double *a, double *b, int size)

{

int row, col;

printf("\nMatrix A is:\n\n");

for(row=0; row<size; row++)

{

for(col=0; col<size; col++)

{

printf("%.3f ", A[row][col]);

}

}

for(row=0; row<size; row++)

{

for(col=0; col<size; col++)

{

B[row][col]=1.5*A[row][col]*A[row][col];

}

}

printf("\nVector a is:\n\n");

printf("a[] = ");

for(col=0; col<4; col++)

{

printf("%.3f ", a[col]);

}

for(row=0; row<4; row++);

{

b[row]=((A[row][0]+A[row][1]+A[row][2]+A[row][3])*a[row])+.5*a[row];

}

}``````
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