Competitive_Programming/AUG19B/1.cpp at 59efbf04cf6b123dae18bda8c8a54bbcfd795067 · proRamLOGO/Competitive_Programming · GitHub

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#include <iostream>
#include <vector>

using namespace std;

int main() {

    short int t ;
    cin >> t ;

    while ( t-- ) {

        int n ;
        cin >> n ;
        vector< int > a(n), b(n) ;

        for ( auto i = 0 ; i < n ; ++i )
            cin >> a[i] ;
        for ( auto i = 0 ; i < n ; ++i )
            cin >> b[i] ;

        int ans = 0 ;
        //cout << '\n' ;
        for ( auto i = 0 ; i < n ; ++i ) {
            int res = a[i]*20 - b[i]*10 ;
            //cout << res << '\n' ;
            ans = max(res,ans) ;
        }

        cout << ans << '\n' ;

    }

	return 0;
}