| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 241281 |
2020-06-23T16:09:01 Z |
abacaba |
Wall (IOI14_wall) |
C++14 |
|
221 ms |
108024 KB |
#include <iostream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include "wall.h"
#include <cstring>
#include <chrono>
#include <vector>
#include <map>
#include <random>
#include <set>
#include <algorithm>
#include <math.h>
#include <cstdio>
#include <stdio.h>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <deque>
#include <cassert>
#include <stack>
using namespace std;
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define emb emplace_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define endl '\n'
#define uset unordered_set
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T> inline T range(T l, T r) {
return uniform_int_distribution<T>(l, r)(rng);
}
inline void setin(string s) {
freopen(s.c_str(), "r", stdin);
}
inline void setout(string s) {
freopen(s.c_str(), "w", stdout);
}
template <typename T> void Min(T &a, T b) {
a = min(a, b);
}
template <typename T> void Max(T &a, T b) {
a = max(a, b);
}
const int inf = 0x3f3f3f3f;
const int mod = 998244353;
const int N = 2e6 + 15;
struct segment_tree {
int mn[N << 2], mx[N << 2], add[N << 2];
segment_tree() {
memset(mn, 0, sizeof(mx));
memset(mx, 0, sizeof(mn));
memset(add, -1, sizeof(add));
}
inline void push(int v) {
if(v < (N << 1) && add[v] != -1) {
mn[v << 1] = mx[v << 1] = add[v];
mn[v << 1 | 1] = mx[v << 1 | 1] = add[v];
add[v << 1] = add[v << 1 | 1] = add[v];
add[v] = -1;
}
}
void multiupdate(int v, int tl, int tr, int l, int r, int h, int type) {
if(tl > r || tr < l || (type == 1 && mn[v] >= h) || (type == 2 && mx[v] <= h))
return;
push(v);
if(tl >= l && tr <= r && ((type == 1 && mx[v] <= h) || (type == 2 && mn[v] >= h)))
mn[v] = mx[v] = add[v] = h;
else if(tl != tr) {
int mid = tl + tr >> 1;
multiupdate(v << 1, tl, mid, l, r, h, type);
multiupdate(v << 1 | 1, mid + 1, tr, l, r, h, type);
mn[v] = min(mn[v << 1], mn[v << 1 | 1]);
mx[v] = max(mx[v << 1], mx[v << 1 | 1]);
}
}
void output(int v, int tl, int tr, int finalHeight[]) {
if(tl == tr)
finalHeight[tl] = mn[v];
else {
push(v);
int mid = tl + tr >> 1;
output(v << 1, tl, mid, finalHeight);
output(v << 1 | 1, mid + 1, tr, finalHeight);
}
}
} t;
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
for(int i = 0; i < n; ++i)
t.multiupdate(1, 0, n - 1, left[i], right[i], height[i], op[i]);
t.output(1, 0, n - 1, finalHeight);
}
Compilation message
wall.cpp: In member function 'void segment_tree::multiupdate(int, int, int, int, int, int, int)':
wall.cpp:89:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = tl + tr >> 1;
~~~^~~~
wall.cpp: In member function 'void segment_tree::output(int, int, int, int*)':
wall.cpp:101:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = tl + tr >> 1;
~~~^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
55 ms |
94200 KB |
Output is correct |
| 2 |
Incorrect |
66 ms |
94328 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
56 ms |
94328 KB |
Output is correct |
| 2 |
Incorrect |
221 ms |
108024 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
63 ms |
94328 KB |
Output is correct |
| 2 |
Incorrect |
56 ms |
94328 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
55 ms |
94328 KB |
Output is correct |
| 2 |
Incorrect |
54 ms |
94328 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
