22 lines
330 B
C
22 lines
330 B
C
#include <stdio.h>
|
|
|
|
int main(void){
|
|
int number,n[20];
|
|
scanf("%d",&number);
|
|
int i;
|
|
for(i = 0; i < number; i++){
|
|
scanf("%d",&n[i]);
|
|
}
|
|
int max = -1, now = 1;
|
|
for(i = 0; i < number; i++){
|
|
if(n[i] > 0){
|
|
now *= n[i];
|
|
if(now > max) max = now;
|
|
}
|
|
}
|
|
if(max > 0)
|
|
printf("%d\n",max);
|
|
else printf("-1\n");
|
|
return 0;
|
|
}
|