Submission #1147985

#	Time	Username	Problem	Language	Result	Execution time	Memory
1147985		Saul0906	Wall (IOI14_wall)	C++20	Compilation error	0 ms	0 KiB

wall

#include <bits/stdc++.h>
#include "wall.h"
#define mid ((l+r)>>1)
#define fi first
#define se second
#define pii pair<int, int>
#define rep(a,b,c) for(int a=b; a<c; a++)

using namespace std;
using vi = vector<int>;

const int inf=1e9+5;

struct segtree{
    segtree *left, *right;
    int l, r;
    vi a;
    pii upd={0,0};
    segtree(int x, int y): l(x), r(y){
        if(l==r) return;
        left = new segtree(l,mid);
        right = new segtree(mid+1,r);
    }
    void prop(){
        if(!upd.fi) return;
        if(l<r){
            left->upd = upd;
            right->upd = upd;
        }
        upd={0,0};
    }
    void update(int x, int y, int h, int z){
        prop();
        if(y<l || r<x) return;
        if(x<=l && r<=y){
            upd={z,h};
            return;
        }
        left->update(x,y,h,z);
        right->update(x,y,h,z);
    }
    pii query(int x){
        if(x<l || r<x) return {0,-5};
        if(x<=l && r<=x) return upd;
        pii A, B;
        A=left->query(x);
        B=right->query(x);
        if(upd.fi==1 && A.se>=0) return {upd.fi,max(A.se,upd.se)}; 
        else if(upd.fi==1 && B.se>=0) return {upd.fi,max(B.se,upd.se)}; 
        else if(upd.fi==2 && A.se>=0) return {upd.fi, min(A.se,upd.se)};
        else if(upd.fi==2 && B.se>=0) return {upd.fi, min(B.se,upd.se)};
        return {0,0};
    }
};

void buildWall(int n, int k, vi op, vi left, vi right, vi height, vi finalHeight){
    segtree st(0,n-1);
    rep(i,0,k) st.update(left[i],right[i],height[i],op[i]);
    rep(i,0,n) finalHeight[i]=st.query(i).se;
    return;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccu5uk2q.o: in function `main':
grader.cpp:(.text.startup+0x133): undefined reference to `buildWall(int, int, int*, int*, int*, int*, int*)'
collect2: error: ld returned 1 exit status