# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
894041 |
2023-12-27T20:48:10 Z |
raul2008487 |
Wall (IOI14_wall) |
C++17 |
|
150 ms |
164660 KB |
#include<bits/stdc++.h>
#include "wall.h"
#define ll long long
#define vl vector<ll>
#define pll pair<ll,ll>
#define in insert
#define fi first
#define se second
#define all(v) v.begin(), v.end()
using namespace std;
const int sz = 2e6+6;
const ll dh = 1e9;
vector<array<ll, 2>> st(sz<<2), res(sz);
bool last[sz];
void comp(ll x1, ll x2){
if(st[x1][0] > st[x2][1]){
st[x2] = {st[x1][0], st[x1][0]};
}
else if(st[x1][1] < st[x2][0]){
st[x2] = {st[x1][1], st[x1][1]};
}
else{
st[x2] = {max(st[x1][0], st[x2][0]), min(st[x1][1], st[x2][1])};
}
}
void push(ll v, ll l, ll r){
if(l == r){return ;}
comp(v, v*2);
comp(v, v*2+1);
st[v] = {0, dh};
}
void build(ll v, ll l, ll r){
if(l == r){
last[v] = 1;
res[v] = {0, 0};
return ;
}
ll m = (l + r)>>1;
build(v*2, l, m);
build(v*2+1, m+1, r);
}
void update(ll v, ll tl, ll tr, ll l, ll r, ll val, ll type){
if(tl > r || tr <l){return ;}
if(tl >= l && tr <= r){
if(last[v]){
if(type == 1){
st[v][0] = max(st[v][0], val);
st[v][1] = max(st[v][1], val);
}
else{
st[v][0] = min(st[v][0], val);
st[v][1] = min(st[v][1], val);
}
return ;
}
if(type == 1){
st[v] = {val, dh};
}
else{
st[v] = {0, val};
}
push(v, tl, tr);
return ;
}
push(v, tl, tr);
ll tm = (tl+tr)>>1;
update(v*2, tl, tm, l, r, val, type);
update(v*2+1, tm+1, tr, l, r, val, type);
}
void trav(ll v, ll tl, ll tr){
if(tl == tr){
res[tl] = st[v];
return ;
}
push(v, tl, tr);
ll tm = (tl + tr)>>1;
trav(v*2, tl, tm);
trav(v*2+1, tm+1, tr);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
ll i, j, z = 0;
for(i=0;i<=(n<<2);i++){
st[i] = {0, dh};
}
build(1, 0, n-1);
for(i=0;i<k;i++){
update(1, 0, n-1, left[i], right[i], height[i], op[i]);
}
trav(1, 0, n-1);
for(i=0;i<n;i++){
finalHeight[i] = res[i][0];
}
}
/*
10 6
1 1 8 4
0 4 9 1
0 3 6 5
1 0 5 3
1 2 2 5
0 6 7 0
*/
Compilation message
wall.cpp: In function 'void buildWall(int, int, int*, int*, int*, int*, int*)':
wall.cpp:81:11: warning: unused variable 'j' [-Wunused-variable]
81 | ll i, j, z = 0;
| ^
wall.cpp:81:14: warning: unused variable 'z' [-Wunused-variable]
81 | ll i, j, z = 0;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
22 ms |
156972 KB |
Output is correct |
2 |
Correct |
24 ms |
156940 KB |
Output is correct |
3 |
Incorrect |
24 ms |
157020 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
156764 KB |
Output is correct |
2 |
Correct |
130 ms |
164660 KB |
Output is correct |
3 |
Incorrect |
150 ms |
160332 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
156908 KB |
Output is correct |
2 |
Correct |
26 ms |
156888 KB |
Output is correct |
3 |
Incorrect |
24 ms |
157020 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
156764 KB |
Output is correct |
2 |
Correct |
24 ms |
156956 KB |
Output is correct |
3 |
Incorrect |
24 ms |
157012 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |