C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int  n,m=99;
	cin>>n;
	int a[n][m];
	for(int i=0;i<n;i++){
		a[i][0] = 1;
		int k;
		cin>>k;//2
		k = k -1;
		for(int j=1;j<m;j++){
			for(int p=0;p<k;p++){
				a[i][j+p] = 0;
			}
			j= j + k;
			a[i][j] = 1; 
		}
	} 
	int j;
	for( j=1;j<m;j++){
		bool f = true;//假定列上每一个数都是1 
		for(int i=0;i<n;i++){
			if(a[i][j]!=1){
				f  = false;
			}
		}
		if(f == true){
			break;
		}
	}
	cout<<j+1;
	return 0;
}

Python :

n = int(input())
s = input().split()
for i in range(0, n):
    s[i] = int(s[i])
mx = max(s)
i = mx;
while True:
    f = True
    for j in range(0, n):
        if i % s[j] != 0:
            f = False
            break
    if f is True:
        print(i + 1)
        break;
    i += 1