Submission #344263

#	Time	Username	Problem	Language	Result	Execution time	Memory
344263		Rakhmand	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	64 / 100	2894 ms	8716 KiB

sortbooks

//
//  A.cpp
//  torelax
//
//  Created by Rakhman on 1/5/21.
//
 
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>
 
#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define no_answer {cout << "NO"; exit(0);}
#define FOR(i, start, finish, k) for(llong i = start; i <= finish; i += k)
 
const long long mxn = 1e6 + 110;
const long long mnn = 1e3 + 2;
const long long mod = 1e9 + 7;
const long long inf = 1e18;
const long long OO = 1e9 + 100;
 
typedef long long llong;
typedef unsigned long long ullong;
 
using namespace std;
 
int n, m, mx[1010];
int b[mxn];
int sq = 500;
vector<int> v[1010];
 
int main() {
    scanf("%d%d", &n, &m);
    for(int i = 0; i < n; i++){
        scanf("%d", &b[i]);
        v[i / sq].push_back(b[i]);
    }
    for(int i = 0; i <= (n - 1) / sq; i++){
        int kek = 0;
        for(int j = 0; j < v[i].size(); j++){
            if(kek > v[i][j]){
                mx[i] = max(mx[i], kek + v[i][j]);
            }
            kek = max(kek, v[i][j]);
        }
        sort(v[i].begin(), v[i].end());
    }
    for(int i = 1; i <= m; i++){
        int l, r, x, batkya = -1;
        scanf("%d%d%d", &l, &r, &x);
        l--, r--;
        int ans = 0;
        while(l <= r){
            if(l % sq == 0 && l + sq - 1 <= r){
                ans = max(ans, mx[l / sq]);
                int lol = lower_bound(v[l / sq].begin(), v[l / sq].end(), batkya) - v[l / sq].begin() - 1;
                if(lol >= 0) ans = max(ans, batkya + v[l / sq][lol]);
                batkya = max(batkya, v[l / sq][v[l / sq].size() - 1]);
                l += sq;
            }else{
                if(batkya > b[l]){
                    ans = max(ans, batkya + b[l]);
                }
                batkya = max(batkya, b[l]);
                l++;
            }
        }
        if(ans > x){
            printf("%d\n", 0);
        }else{
            printf("%d\n", 1);
        }
        cout << nl;
    }
    
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:66:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         for(int j = 0; j < v[i].size(); j++){
      |                        ~~^~~~~~~~~~~~~
sortbooks.cpp:59:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   59 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:61:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   61 |         scanf("%d", &b[i]);
      |         ~~~~~^~~~~~~~~~~~~
sortbooks.cpp:76:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   76 |         scanf("%d%d%d", &l, &r, &x);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 13
• Subtask 4: 17 / 17
• Subtask 5: 30 / 30
• Subtask 6: 0 / 23