Submission #1096820

#	Time	Username	Problem	Language	Result	Execution time	Memory
1096820		nvgbao08	Triple Jump (JOI19_jumps)	C++14	0 / 100	2 ms	348 KiB

jumps

#include<bits/stdc++.h>
using namespace std;
#define thanchu() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define read(n,a) for (int i=1; i<=n; i++) cin>>a[i];
#define readln(n,a,pp) for (int i=1; i<=n; i++) {cin>>a[i]; pp[a[i]]++;}
#define ull unsigned long long int
#define task "TEXT"
const long long maxn=1e6+4;

long long n,m,a[maxn+1],d=0,s[maxn+1];

void doc()  
{
    #ifndef ONLINE_JUDGE
    freopen(task".INP", "r", stdin);
    freopen(task".OUT", "w", stdout);
    #endif
    cin>>n;
    read(n,a);
    cin>>m;
}

void trau()
{
    while (m--)
    {
        int l, r; 
        cin>> l >>r;
        long long ma=LLONG_MIN;
        for (int x=l; x<=r-2; ++x)
        {
            for (int y=x+1; y<=(r+x)/2; ++y)
            {
                for (int z=2*y-x; z<=r; ++z)
                {
                    ma=max(ma, a[x]+a[y]+a[z]);
                }
            }
        }
        cout<<ma<<endl;
    }
}


void xuly()
{
    while (m--)
    {
        int l,r;
        cin>>l>>r;
        long long x=l,m_ai=a[l],ma=LLONG_MIN;
        for (int y=x+1; y<=(r+x)/2; ++y)
        {
            for (int z=2*y-x; z<=r; ++z)
            {
                ma=max(ma, m_ai+a[y]+a[z]);
            }
            if (a[y]>=m_ai)
            {
                m_ai=a[y];
                x=y;
            }
        }
        cout<<ma<<endl;
    }
}




signed main()
{
    thanchu();
    doc();
    xuly();

}

Compilation message (stderr)

jumps.cpp: In function 'void doc()':
jumps.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen(task".INP", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jumps.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen(task".OUT", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54