Please help me to solve the question

#1
#2

you have not taken input (the array)
first take input correctly
like this

int a[1000]; 
    int b[1000]; 
    cin>>f; 
    for(int i=0;i<f;i++)cin>>a[i];
    cin>>s;  
    for(int i=0;i<f;i++)cin>>a[i];

now try to code and if you have any problem feel free to ask

#3

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