Submission #2543460
Source Code Expand
#include <iostream> using namespace std; int sosu_sum[100005]; int sosu[100005]; int main(){ //sosu_sum[1] =1; sosu[2] =1; for(int i = 3; i < 100001; i +=2){ bool issosu = true; for(int j =3; j < i ;j +=2){ if(i %j ==0){ issosu =false; break; } } if(issosu){ sosu[i] =1; if(sosu[(i +1)/2]==1){ sosu_sum[i] = sosu_sum[i-2] + 1; continue; } } sosu_sum[i] = sosu_sum[i-2]; } int Q, l, r; cin >>Q; for(int i =0 ; i < Q; i++){ cin >> r >> l; if(r == 1) cout << sosu_sum[l] << endl; else cout << sosu_sum[l] - sosu_sum[r -2]<< endl; } return 0; }
Submission Info
Submission Time | |
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Task | D - 2017-like Number |
User | tawawa |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 822 Byte |
Status | AC |
Exec Time | 895 ms |
Memory | 1408 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
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Set Name | Test Cases |
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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 | AC | 892 ms | 1408 KB |
02.txt | AC | 889 ms | 1408 KB |
03.txt | AC | 895 ms | 1408 KB |
04.txt | AC | 892 ms | 1408 KB |
05.txt | AC | 876 ms | 1408 KB |
06.txt | AC | 885 ms | 1408 KB |
07.txt | AC | 895 ms | 1280 KB |
sample_01.txt | AC | 664 ms | 1024 KB |
sample_02.txt | AC | 664 ms | 1024 KB |
sample_03.txt | AC | 664 ms | 1024 KB |