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Submission #838490

# Submission time Handle Problem Language Result Execution time Memory
838490 2023-08-27T09:23:22 Z Andrey Wall (IOI14_wall) C++14
0 / 100
 431 ms 85204 KB 
#include "wall.h"
#include<bits/stdc++.h>
using namespace std;

vector<pair<int,int>> seg(3000000,{0,INT_MAX});
vector<pair<pair<int,int>,int>> haha[1000000];

void upd(int l, int r, int x, int p, int y, int a) {
    if(l == r) {
        if(y == 0) {
            seg[x] = {a,seg[x].second};
        }
        else {
            seg[x] = {seg[x].first,a};
        }
        return;
    }
    int m = (l+r)/2;
    if(p <= m) {
        upd(l,m,x*2+1,p,y,a);
    }
    else {
        upd(m+1,r,x*2+2,p,y,a);
    }
    if(seg[x*2+2].first >= seg[x*2+1].second) {
        seg[x] = seg[x*2+2];
    }
    else {
        seg[x] = {max(seg[x*2+1].first,seg[x*2+2].first),min(seg[x*2+1].second,seg[x*2+2].second)};
    }
}

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
    for(int i = 0; i < k; i++) {
        haha[left[i]].push_back({{i,op[i]-1},height[i]});
        int c = 0;
        if(op[i] == 2) {
            c = INT_MAX;
        }
        haha[right[i]+1].push_back({{i,op[i]-1},c});
    }
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < haha[i].size(); j++) {
            upd(0,k-1,0,haha[i][j].first.first,haha[i][j].first.second,haha[i][j].second);
        }
        finalHeight[i] = min(seg[0].first,seg[0].second);
    }
}

Compilation message

wall.cpp: In function 'void buildWall(int, int, int*, int*, int*, int*, int*)':
wall.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(int j = 0; j < haha[i].size(); j++) {
      |                        ~~^~~~~~~~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47224 KB Output is correct
2 Correct 23 ms 47548 KB Output is correct
3 Incorrect 23 ms 47404 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 47188 KB Output is correct
2 Correct 199 ms 72716 KB Output is correct
3 Correct 181 ms 62152 KB Output is correct
4 Incorrect 431 ms 85204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 47188 KB Output is correct
2 Correct 22 ms 47572 KB Output is correct
3 Incorrect 20 ms 47444 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47160 KB Output is correct
2 Correct 21 ms 47572 KB Output is correct
3 Incorrect 20 ms 47348 KB Output isn't correct
4 Halted 0 ms 0 KB -