#include <iostream>
#include <vector.h>
using namespace std;
bool foundPos(double **a, int n, int m, double x, int &iPos, int &jPos)
{
iPos = -1;
jPos = -1;
for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
if(a[i][j] == x)
{
iPos = i;
jPos = j;
break;
}
}
if(iPos != -1 && jPos != -1)
{
break;
}
}
return (iPos != -1 && jPos != -1);
}
double sumOfNegative(double **a, int n, int m)
{
double s = 0;
for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
if(a[i][j] < 0)
{
s += a[i][j];
}
}
}
return s;
}
void main()
{
int n;
int m;
double **a;
cout<<"Enter rows count: ";
cin>>n;
cout<<"Enter columns count: ";
cin>>m;
cout<<endl;
a = new double*[n];
for(int i = 0; i < n; i++)
{
a[i] = new double[m];
for(int j = 0; j < m; j++)
{
cout<<"Enter element ["<<i<<", "<<j<<"]: ";
cin>>a[i][j];
}
}
// Method #1
cout<<endl;
double x;
int iPos;
int jPos;
cout<<"Enter value: ";
cin>>x;
cout<<endl;
if(foundPos(a, n, m, x, iPos, jPos))
{
cout<<"Element that has value "<<x<<" is at ["<<iPos<<", "<<jPos<<"]";
}
else
{
cout<<"Element that has value "<<x<<" was not found";
}
cout<<endl;
// Method #2
cout<<endl;
cout<<"Sum of negative elements is "<<sumOfNegative(a, n, m);
getchar();
}
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