Submission #1094880

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094880		Kerim	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	17 / 100	3073 ms	80468 KiB

sortbooks

#include "bits/stdc++.h"
#define MAXN 1000009
#define INF 1000000007
#define mp(x,y) make_pair(x,y)
#define all(v) v.begin(),v.end()
#define pb(x) push_back(x)
#define wr cout<<"----------------"<<endl;
#define ppb() pop_back()
#define tr(ii,c) for(__typeof((c).begin()) ii=(c).begin();ii!=(c).end();ii++)
#define ff first
#define ss second
#define my_little_dodge 46
#define debug(x)  cerr<< #x <<" = "<< x<<endl;
using namespace std;
 
typedef long long ll;
typedef pair<int,int> PII;
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;}
int F[MAXN],arr[MAXN],k[MAXN],ans[MAXN];
vector<PII>adj[MAXN];
int main(){
    // freopen("file.in", "r", stdin);
    int n,q;
    scanf("%d%d",&n,&q);
    for(int i=1;i<=n;i++)
        scanf("%d",arr+i);
    for(int i=1;i<=q;i++){
        int l,r;
        scanf("%d%d%d",&l,&r,&k[i]);
        adj[r].pb(mp(l,i)); 
    }
    stack<int>st;
    for(int i=1;i<=n;i++){
        while(!st.empty() and arr[st.top()]<=arr[i])
            st.pop();
        if(!st.empty())
            F[st.top()] = max(F[st.top()], arr[i]+arr[st.top()]);
        tr(it,adj[i]){
            int mx = 0;
            for (int j = it->ff; j <= n; j++)
                mx = max(mx, F[j]);
            if(mx<=k[it->ss])
                ans[it->ss]=1;
        }
        st.push(i);
    }
    for(int i=1;i<=q;i++)
        printf("%d\n",ans[i]);
    return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     scanf("%d%d",&n,&q);
      |     ~~~~~^~~~~~~~~~~~~~
sortbooks.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |         scanf("%d",arr+i);
      |         ~~~~~^~~~~~~~~~~~
sortbooks.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         scanf("%d%d%d",&l,&r,&k[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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