Calculate the sum

#1

please explain what i m doing wrong and give me the correct code

#2

hi @rabimajumder08
refer this -->

#3 
#include<iostream>
#include<vector>
using namespace std;
int main() {
    int n;
    cin>>n;
    vector<int> v;
    for(int i=0;i<n;i++){
        int no;
        cin>>no;
        v.push_back(no);
    }
    int q;
    cin>>q;
    while(q--){
        int x;
        cin>>x;
        vector<int> temp = v;
        for(int i=0;i<n;i++){
            temp[i] = v[i] + v[(i-x+n)%n];
        }
        v = temp;
    }

    long long int sum = 0;
    for(int i=0;i<n;i++){
        sum = (sum + v[i])%1000000007;
    }
    cout<<sum<<endl;
}
#4

sir this question is in 1-d array …i dont know vector now… pls explain what is wrong in my code first and then tell me how to rectify that mistake

#5

hi @rabimajumder08
refer this -->


I have replaced vector with array…

#6

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