Submission #68019

#	Time	Username	Problem	Language	Result	Execution time	Memory
68019		naderjemel	Parachute rings (IOI12_rings)	C++14	Compilation error	0 ms	0 KiB

rings

#include <grader.cpp>    
#include <bits/stdc++.h>
    using namespace std;
    const int LOG = 21;
    struct node
    {
    	char c; int s;
    	node *anc[LOG];
    	node(){
    		for(int i=0;i<LOG;i++) anc[i] = NULL;
    		s=0;
    	}
    }*tree [1000005];
     
    int id;
    void Init(){
    	id=1;
    	tree[0] = new node();
     
    }
    void TypeLetter(char L) {
    	int n=id++;
    	tree[n] = new node();
    	tree[n]->s = tree[n-1]->s+1;
    	tree[n]->c = L;
    	tree[n]->anc[0]=tree[n-1];
    	for(int i=1;i<LOG;i++) tree[n]->anc[i] = (tree[n]->anc[i-1]) ? (tree[n]->anc[i-1])->anc[i-1] : NULL; 
    }
     
    void UndoCommands(int U) {
    	int ret=id-1-U;
    	int n=id++;
    	tree[n]=tree[ret];
    }
     
     
    char GetLetter(int P) {
    	int n=id-1;
    	node *h = new node();
    	h=tree[n];
    	int up=tree[n]->s - 1 - P;
    	for(int i=LOG-1;i>=0;i--){
    		if(up - (1<<i) >= 0){
    			up-=(1<<i);
    			h=h->anc[i];
    		}
    	}
    	return h->c;
    }

Compilation message (stderr)

/tmp/ccXLl9o7.o: In function `main':
rings.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccortGaw.o:grader.cpp:(.text.startup+0x0): first defined here
/tmp/ccortGaw.o: In function `main':
grader.cpp:(.text.startup+0x80): undefined reference to `Init(int)'
grader.cpp:(.text.startup+0xb2): undefined reference to `Link(int, int)'
grader.cpp:(.text.startup+0xd5): undefined reference to `CountCritical()'
/tmp/ccXLl9o7.o: In function `main':
rings.cpp:(.text.startup+0x80): undefined reference to `Init(int)'
rings.cpp:(.text.startup+0xb2): undefined reference to `Link(int, int)'
rings.cpp:(.text.startup+0xd5): undefined reference to `CountCritical()'
collect2: error: ld returned 1 exit status