Submission #1924729


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#include <bits/stdc++.h>
using namespace std;
#define L 100001
long q;
vector < long > tmp(L,1);
void init()
{
    long i,j;
    for (i=2;i<=sqrt(L);i++)
        if (tmp[i])
            for (j=2*i;j<L;j+=i)
                tmp[j]=0;
    tmp[0]=tmp[1]=0;
}
void solve()
{
    while(q--)
    {
        long i,l,r,ans=0;
        scanf("%ld%ld",&l,&r);
        for (i=l;i<=r;i+=2)
            if (tmp[i]&&tmp[(i+1)/2]) ans++;
        printf("%ld\n",ans);
    }
}
int main()
{
    init();
    while(~scanf("%ld",&q))
        solve();
}

Submission Info

Submission Time
Task D - 2017-like Number
User wahahawa
Language C++14 (GCC 5.4.1)
Score 0
Code Size 560 Byte
Status TLE
Exec Time 2103 ms
Memory 1280 KB

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:20:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%ld%ld",&l,&r);
                              ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 3
AC × 3
TLE × 7
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, sample_01.txt, sample_02.txt, sample_03.txt
Case Name Status Exec Time Memory
01.txt TLE 2103 ms 1152 KB
02.txt TLE 2103 ms 1152 KB
03.txt TLE 2103 ms 1152 KB
04.txt TLE 2103 ms 1152 KB
05.txt TLE 2103 ms 1024 KB
06.txt TLE 2103 ms 1024 KB
07.txt TLE 2103 ms 1280 KB
sample_01.txt AC 2 ms 1024 KB
sample_02.txt AC 2 ms 1024 KB
sample_03.txt AC 2 ms 1024 KB