reading file ,searching word and storing the values corresponding to that word into arrays

[nct]

hey guys i have a file in following form

TIME= 0.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282

TIME= 2.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282


TIME= 4.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282


TIME= 6.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282


TIME= 8.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282

TIME= 10.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282

i need a program which takes a input value(i.e time)and search the given time in the file.Further after finding the given time ,it stores the values corresponding to given time in three different arrays.
I have written the program for this list :

-0.65043 6.35235 -0.01081 -0.00014 -0.00981 0.00329
-0.63086 6.16032 -0.01083 -0.00028 -0.00976 0.00657
-0.61129 5.96829 -0.01086 -0.00034 -0.00969 0.00967
-0.59172 5.77623 -0.01089 -0.00038 -0.00961 0.01154
-0.57215 5.58411 -0.01096 -0.00035 -0.00945 0.01071
-0.55258 5.39199 -0.01103 -0.00034 -0.00929 0.00992



[#include <fstream>
#include <string>
#include <vector>
#include <iostream>
#include <sstream>

using namespace std;
double interpolation (double x1, double x2, double y1, double y2, double xInt)
{

double yInt = y1 + (y2-y1)/(x2-x1)*(xInt-x1);

return yInt;
}
double U (double z)
{
ifstream theFile("vel.txt");
double depth;
int n=0;
int f=0;
double y[100]={0};

double v[100]={0};


double velocity;

double pressure;
double velocityx;
double velocityy;
double acclx;
double accly;
while (theFile>>depth>>pressure>>velocityx>>velocityy>>acclx>>accly)
{
y[n]=depth;

v[n]=velocityx;

n=n+1;
}

for(int i=0;i<n;i++)
{
if(y[i]==z)
{
velocity=v[i];

}
else if(y[i]<z)
{
f=f+1;
}
else
{
velocity=interpolation (y[f-1], y[f], v[f-1], v[f], z);

break;
}
}
return velocity;
}
int main()
{
double z;
cin>>z;
cout<<"velocity in x direction is "<<U(z);
return 0;


}]

[jlb]

I have written the program for this list :

-0.65043 6.35235 -0.01081 -0.00014 -0.00981 0.00329
-0.63086 6.16032 -0.01083 -0.00028 -0.00976 0.00657
-0.61129 5.96829 -0.01086 -0.00034 -0.00969 0.00967
-0.59172 5.77623 -0.01089 -0.00038 -0.00961 0.01154
-0.57215 5.58411 -0.01096 -0.00035 -0.00945 0.01071
-0.55258 5.39199 -0.01103 -0.00034 -0.00929 0.00992

How does that list correspond to your input file:

TIME= 8.00
9.00000 -0.67000 6.57270
9.00000 -0.65029 6.37938
9.00000 -0.63059 6.18606
9.00000 -0.61088 5.99274
9.00000 -0.59117 5.79942
9.00000 -0.57147 5.60610
9.00000 -0.55176 5.41278
9.00000 -0.53206 5.21946
9.00000 -0.51235 5.02614
9.00000 -0.49264 4.83282

[nct]

hey jlb,
thanx for reply.
the list i have shown for which i have written the code is just an example.
can u please help me in writing the required code??
I m not able to search and store the values for aparticular time step.
Thanx in advane

[jlb]

How you read the file depends on the format of the file and what you intend to do with the data contained within the file. You should start by designing a data structure to hold the data in the file.

But no, I won't write the code for you. If I did you wouldn't learn anything. Besides I really don't know what each line of your file represents and without knowing this just reading the data is useless.