Submission #682788

#	Time	Username	Problem	Language	Result	Execution time	Memory
682788		Paul_Liao_1457	Fire (JOI20_ho_t5)	C++17	13 / 100	206 ms	9940 KiB

ho_t5

//記得跳題
#include<iostream>
#include<array>
#include<vector>
#include<string>
#include<algorithm>
#include<set>
#include<queue>
#include<stack>
#include<math.h>
#include<map>
#include<unordered_map>
#include<cstring>
#include<iomanip>
#include<bitset>
#include<tuple>
 
#define ll long long
#define LL __int128_t
#define DB double
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define REP(i,a,b) for(int i=a;i>=b;i--)
#define pb push_back
#define mp make_pair
#define INF (ll)(1e9)
#define MOD (ll)(1e9+7)
#define F first
#define S second
#define endl "\n"
#define AC ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 
using namespace std;
 
template<class T> using PQ=priority_queue<T,vector<T>,less<T> >;
 
void file(){
    freopen("/Users/liaoyunyang/Desktop/meta_in.txt","r",stdin);
    freopen("/Users/liaoyunyang/Desktop/meta_out.txt","w",stdout);
}
 
int s[200005],seg[800005];
 
void build(int id,int l,int r){
    if(l==r){
        seg[id]=s[l]; return;
    }
    int mid=(l+r)>>1;
    build(id*2,l,mid);
    build(id*2+1,mid+1,r);
    seg[id]=max(seg[id*2],seg[id*2+1]);
}
 
int ask(int id,int l,int r,int L,int R){
    if(l>R||r<L) return 0;
    if(L<=l&&r<=R) return seg[id];
    int mid=(l+r)>>1;
    return max(ask(id*2,l,mid,L,R),ask(id*2+1,mid+1,r,L,R));
}

int t[200005],l[200005],r[200005];
ll pre[200005];
 
signed main(){
    AC;
    int n,q; cin>>n>>q;
    FOR(i,1,n+1) cin>>s[i];
    build(1,1,n);
    FOR(i,0,q){
        cin>>t[i]>>l[i]>>r[i];
    }
    FOR(i,1,n+1){
        pre[i]=pre[i-1]+ask(1,1,n,i-t[0],i);
    }
    FOR(i,0,q){
        if(l[i]==r[i]){
            cout<<ask(1,1,n,l[i]-t[i],l[i])<<endl;
        }
        else cout<<pre[r[i]]-pre[l[i]-1]<<endl;
    }
}
 
 
/*
 
 */

Compilation message (stderr)

ho_t5.cpp: In function 'void file()':
ho_t5.cpp:37:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |     freopen("/Users/liaoyunyang/Desktop/meta_in.txt","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ho_t5.cpp:38:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     freopen("/Users/liaoyunyang/Desktop/meta_out.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 1
• Subtask 2: 6 / 6
• Subtask 3: 7 / 7
• Subtask 4: 0 / 6
• Subtask 5: 0 / 80