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Find common elements in two arrays
yangwenzhou Fri Sep 23, 2011 12:02 pm
If they are sorted:
public static void findCommon(int a[],int b[]){
for(int i=0,j=0;i<a.length&&j<b.length;){
if(a[i]==b[j]){
System.out.print(a[i]+" ");
i++;
j++;
}
else if(a[i]<b[j]){
i++;
}
else
j++;
}
}
if not, hashmap
public static void findCommon(int a[],int b[]){
for(int i=0,j=0;i<a.length&&j<b.length;){
if(a[i]==b[j]){
System.out.print(a[i]+" ");
i++;
j++;
}
else if(a[i]<b[j]){
i++;
}
else
j++;
}
}
if not, hashmap
yangwenzhou- Posts : 5
Join date : 2011-09-23
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