Submission #1094349

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094349		KasymK	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	155 ms	69204 KiB

sortbooks

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 1e6+5;
int v[N];

struct node{
    int l, r, val;
} seg[N<<2];

void build(int x, int l, int r){
    seg[x].l = l, seg[x].r = r;
    if(l == r){
        seg[x].val = (v[l]<v[l-1]);
        return;
    }
    int mid = (l+r)>>1;
    build(x<<1, l, mid);
    build(x<<1|1, mid+1, r);
    seg[x].val = seg[x<<1].val+seg[x<<1|1].val;
}

int query(int x, int l, int r){
    if(seg[x].l == l and seg[x].r == r)
        return seg[x].val;
    int mid = (seg[x].l+seg[x].r)>>1;
    if(r <= mid)
        return query(x<<1, l, r);
    else if(l > mid)
        return query(x<<1|1, l, r);
    else
        return query(x<<1, l, mid)+query(x<<1|1, mid+1, r);
}

int main(){
    int n, q;
    scanf("%d%d", &n, &q);
    for(int i = 1; i <= n; ++i){
        int x;
        scanf("%d", &x);
        v[i] = x;
    }
    build(1, 1, n);
    while(q--){
        int l, r, k;
        scanf("%d%d%d", &l, &r, &k);
        if(query(1, l+1, r) == 0)
            puts("1");
        else
            puts("0");
    }
    return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:48:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |     scanf("%d%d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:51:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~
sortbooks.cpp:57:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |         scanf("%d%d%d", &l, &r, &k);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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