C++ Code Optimization: Efficiently Calculating Array Values

The given code takes three inputs, a, b, and c. It then declares arrays d and e of size a, arrays f and g of size b. It then takes inputs for arrays d, e, and f.

The code then uses nested loops to check if the sum of f[i] and c is greater than d[j] - e[j] and less than or equal to d[j]. If this condition is true, it increments g[i] by 1.

Finally, it prints the values of array g.

However, there are a few issues with the code:

1. The size of arrays d and e should be b, not a.
2. The initialization of array g is incorrect. It should be initialized to all zeros.

Here is the corrected code:

#include <iostream>
using namespace std;

int main() {
    int a, b, c, i, j;
    cin >> a >> b >> c;
    int d[b], e[b], f[a], g[a] = {0};
    
    for (i = 0; i < b; i++)
        cin >> d[i] >> e[i];
    
    for (i = 0; i < a; i++)
        cin >> f[i];
    
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            if (((f[i] + c) > (d[j] - e[j])) && ((f[i] + c) >= d[j]))
                g[i] = g[i] + 1;
        }
    }
    
    for (i = 0; i < a; i++)
        cout << g[i] << endl;
    
    return 0;
}

Now, the code will correctly take inputs and calculate and print the values of array g.