Submission #573813

#	Time	Username	Problem	Language	Result	Execution time	Memory
573813		Sho10	Secret (JOI14_secret)	C++17	0 / 100	642 ms	524288 KiB

secret

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho
#include "secret.h"
using ll=long long;
using ld=long double;
int const INF=1000000005;
ll const LINF=1000000000000000005;
ll const mod=6700417;
ld const PI=3.14159265359;
ll const MAX_N=3e5+5;
ld const EPS=0.00000001;
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define sz(a) (int)a.size()
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll pref[1005][1005],v[1005];
void add(ll l,ll r){
    if(l==r){
        return;
    }
ll mid=(l+r)/2;
for(ll i=mid-1;i>=l;i--)
{
pref[i][mid]=Secret(pref[i+1][mid],pref[i][i]);
}
for(ll i=mid+2;i<r;i++)
{
    pref[mid+1][i]=Secret(pref[mid+1][i-1],pref[i][i]);
}
add(l,mid-1);
add(mid,r);
}
void Init(int n,int a[]){
for(ll i=0;i<n;i++)
    for(ll j=i+1;j<n;j++)
{
    pref[i][j]=-1;
}
for(ll i=0;i<n;i++)
{
    pref[i][i]=a[i];
    v[i]=a[i];
}
add(0,n);
}
int Query(int l,int r){
if(pref[l][r]!=-1){
    return pref[l][r];
}
for(ll i=l;i<r;i++)
{
    if(pref[l][i]!=-1&&pref[i+1][r]!=-1){
        return Secret(pref[l][i],pref[i+1][r]);
    }
}
}

Compilation message (stderr)

secret.cpp: In function 'int Query(int, int)':
secret.cpp:61:1: warning: control reaches end of non-void function [-Wreturn-type]
   61 | }
      | ^

• Subtask 1: 0 / 100