Sum of two array?

#1

pls tell why my problem fail in two test case;
and also correct my code
#include
using namespace std;
void suma(int arr[],int a[],int a1[],int k,int n,int m){

for(int i = k; i > 0 ;i--){
int carry = 0;
int sum = arr[i-1]+a[i]+carry;
a1[i]+= sum%10;
a1[i-1] += sum/10;
}
 for(int i =0; i < k;i++){
    cout<<a1[i]<<", ";
}
cout<<"END";

}
int main() {
int n; cin>>n;
int arr[n];
for(int i =0; i < n;i++){
cin>>arr[i];
}
int m; cin>>m; int a[m];
for(int i =0; i < m;i++){
cin>>a[i];
}
int k; if(n>m){ k = n; } else { k = m; }

int a1[k] = {0};

suma(arr,a,a1,k,n,m);


return 0;

}

#2

Hello @kshitiz.gzb,

When you run your code for the sample input:
4
1 0 2 9
5
3 4 5 6 7
Your Output:
0, 5, 5, 9, -169697330, END

If you observe it carefully, it is giving junk value for last index. Why?
This is because you are iterating the loop inside the value for wrong values.
arr[k-1] and a[k] contains junk value.

Solution:
for(int i = k; i >0 ;i–){}

Hope, this would help.
Give a like, if you are satisfied.

#3

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