# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
212419 |
2020-03-22T22:53:43 Z |
Dan13llljws |
Wall (IOI14_wall) |
C++14 |
|
0 ms |
0 KB |
#include <bits/stdc++.h>
#include "walll.h"
using namespace std;
#define INF 0x3f3f3f3f
#define lc i << 1
#define rc i << 1 | 1
const int MM = 2e6 + 5;
struct node{int l, r, lz1, lz2;}seg[MM << 2];
void update_add(int i, int v){
seg[i].lz1 = max(seg[i].lz1, v);
seg[i].lz2 = max(seg[i].lz2, v);
}
void update_remove(int i, int v){
seg[i].lz1 = min(seg[i].lz1, v);
seg[i].lz2 = min(seg[i].lz2, v);
}
void push_down(int i){
update_add(lc, seg[i].lz1);
update_add(rc, seg[i].lz1);
seg[i].lz1 = 0;
update_remove(lc, seg[i].lz2);
update_remove(rc, seg[i].lz2);
seg[i].lz2 = INF;
}
void build(int i, int l, int r){
seg[i].l = l, seg[i].r = r;
if (l == r) return;
seg[i].lz2 = INF;
int mid = l + r >> 1;
build(lc, l, mid), build(rc, mid + 1, r);
}
void add(int i, int l, int r, int v){
if (seg[i].l == l && seg[i].r == r){
update_add(i, v); return;
}
push_down(i);
int mid = seg[i].l + seg[i].r >> 1;
if (r <= mid) add(lc, l, r, v);
else if (l > mid) add(rc, l, r, v);
else add(lc, l, mid, v), add(rc, mid + 1, r, v);
}
void remove(int i, int l, int r, int v){
if (seg[i].l == l && seg[i].r == r){
update_remove(i, v); return;
}
push_down(i);
int mid = seg[i].l + seg[i].r >> 1;
if (r <= mid) remove(lc, l, r, v);
else if (l > mid) remove(rc, l, r, v);
else remove(lc, l, mid, v), remove(rc, mid + 1, r, v);
}
int query(int i, int pos){
if (seg[i].l == pos && seg[i].r == pos) return seg[i].lz2;
push_down(i);
int mid = seg[i].l + seg[i].r >> 1;
if (pos <= mid) return query(lc, pos);
else return query(rc, pos);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
build(1, 1, n);
for (int i = 0; i < k; i++){
if (op[i] == 1) add(1, left[i] + 1, right[i] + 1, height[i]);
else remove(1, left[i] + 1, right[i] + 1, height[i]);
}
for (int i = 0; i < n; i++) finalHeight[i] = query(1, i + 1);
}
int main(){
return 0;
}
Compilation message
wall.cpp:2:10: fatal error: walll.h: No such file or directory
#include "walll.h"
^~~~~~~~~
compilation terminated.