Find the Water king

#include <iostream>using namespacestd;#defineMAXSIZE 20voidFindwater (intId[],intLenint&water) {    intCounter=0;//counter     for(intI=0; i<len;i++)    {        if(counter==0)//if the counter is zero{Water=id[i];//record the ID of the current post as the water king suspectcounter++; }        Else        {            if(Water==id[i])//If the water king suspects the same as the following IDcounter++;//The counter is recorded, otherwise minus one            Elsecounter--; }    }}intMainintargcChar*argv[]) {    intId[maxsize];//Post record form    intnum,waterking;//number of posts, water Kingcout<<"Please enter the number of posts:"; CIN>>num; cout<<"Please enter the Post ID:";  for(intI=0; i<num;i++) {cin>>Id[i];    } findwater (id,num,waterking); cout<<"The Water king is:"<<WaterKing<<Endl; return 0;}

Find the Water king