Submission #203060

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
203060	2020-02-19T07:12:57 Z	detaomega	Wall (IOI14_wall)	C++14	Compilation error	0 ms	0 KB

wall

#include "wall.h"
#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
#define rep(i,a,b) for(int i=a;i<=b;i++)
#define IOS ios::sync_with_stdio(0);cin.tie(0);
#define de(x,y) cout<<#x<<" :"<<x<<y;
#define int long long
#define SZ(xx) ((int)xx.size())
#define lowbit(xx) (xx&(-xx))
#define pb push_back
#define ls node*2
#define rs node*2+1
typedef pair<int,int> pii;

const int maxn = 3e6+5;
const int INF = 1e9+5;
int mx[maxn * 4], mn[maxn * 4], tag[maxn * 4], ans[maxn];



void push(int node) {
	if(mn[ls] != INF) {
		mx[ls] = min(mx[ls], mn[ls]);
	}
	if(mn[rs] != INF) {
		mx[rs] = min(mx[rs], mn[rs]);
	}
	if(tag[node]) {
		tag[rs] = tag[ls] = 1;
		mn[rs] = mn[ls] = INF;
	} 
	mx[ls] = max(mx[ls], mx[node]);
	mx[rs] = max(mx[rs], mx[node]);
	mn[ls] = min(mn[ls], mn[node]);
	mn[rs] = min(mn[rs], mn[node]);
	mx[node] = 0;
	mn[node] = INF;
	tag[node] = 0;
}

void upd(int node,int l,int r,int a,int b,int type,int val) {
	if(a <= l && r <= b) {
		if(type == 1) {
			if(mn[node] != INF)
				mx[node] = min(mn[node], mx[node]);
			tag[node] = 1;
			mn[node] = INF;
			mx[node] = max(mx[node], val);
		}
		else {
			tag[node] = 0;
			mn[node] = min(mn[node], val);
			mx[node] = min(mx[node], mn[node]);
		}
	}	
	else {
		push(node);
		int m = (l + r) >> 1;
		if(a <= m) upd(ls, l, m, a, b, type, val);
		if(b > m) upd(rs, m+1, r, a, b, type, val);
	}
}

void travel(int node,int l,int r) {
	if(l == r) {
		if(mn[node] != INF)
			ans[l] = min(mn[node], mx[node]);
		else
			ans[l] = mx[node];	
	}
	else {
		push(node);
		int m = (l + r) >> 1;
		travel(ls, l, m);
		travel(rs, m+1, r);
	}
}

void print(int node,int l,int r) {
	if(l == r) { 
		cout << l << " " << r << " " << mx[node] << " " << mn[node] << "\n";
	}
	else {
		int m = (l + r) >> 1;
		print(ls, l, m);
		print(rs, m+1, r);
		cout << l << " " << r << " " << mx[node] << " " << mn[node] << "\n";
	}
}
void buildWall(int n,int k,int op[],int left[], int right[], int height[], int finalHeight[]) {
	for(int i=1; i<=maxn * 2; i++) {
		mx[i] = 0;
		mn[i] = INF;
	}
	for(int i=0; i<k; i++) {
		upd(1, 1, n, left[i]+1, right[i]+1, op[i], height[i]);
	}
	travel(1, 1, n);
	for(int j=1; j<=n; j++) {
		finalHeight[j-1] =  ans[j];
	}
}

Compilation message

/tmp/cckBmc1O.o: In function `main':
grader.cpp:(.text.startup+0x113): undefined reference to `buildWall(int, int, int*, int*, int*, int*, int*)'
collect2: error: ld returned 1 exit status