Submission #1314335
Source Code Expand
#include <cstdio> #include <cstring> #include <cmath> #include <cassert> #include <vector> #include <string> #include <set> #include <map> #include <queue> #include <stack> #include <algorithm> using namespace std; typedef long long i64; const int inf = (int)1.05e9; int msb(i64 x) { for(int i = 62; i >= 0; --i) { if(x & (1LL << i)) return i; } return -1; } i64 simple(i64 a, i64 lb) { if(lb == 0) return 0; if(lb >= a - 1) return 0; int msb_lb = msb(lb); i64 maxi = (1LL << (msb_lb + 1)) - 1; i64 count = min(maxi, a - 1) - lb; return count; } i64 compute(i64 a, i64 b) { int ma = msb(a); int mb = msb(b); //printf("msb: %d %d\n", ma, mb); if(ma == mb) { if(ma == -1) return 0; return compute(a ^ (1LL << ma), b ^ (1LL << mb)); } i64 lb = b ^ (1LL << mb); i64 s = 0; // a .. 9999 s += (1LL << mb) - max(lb + 1, a); //printf("a .. 9999 -> %lld - %lld\n", (1LL << mb), max(lb + 1, a)); // (lb+1) .. (a-1) s += simple(a, lb); //printf("simple %lld %lld -> %lld\n", a, lb, simple(a, lb)); return s; } int main() { i64 a, b; scanf("%lld%lld", &a, &b); i64 ans = b - a + 1 + compute(a, b); printf("%lld\n", ans); return 0; } /* waffle */
Submission Info
Submission Time | |
---|---|
Task | D - A or...or B Problem |
User | wafrelka |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 1258 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 128 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:67:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &a, &b); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 900 / 900 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | s1.txt, s2.txt, s3.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, s1.txt, s2.txt, s3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 1 ms | 128 KB |
02.txt | AC | 1 ms | 128 KB |
03.txt | AC | 1 ms | 128 KB |
04.txt | AC | 0 ms | 128 KB |
05.txt | AC | 0 ms | 128 KB |
06.txt | AC | 1 ms | 128 KB |
07.txt | AC | 0 ms | 128 KB |
08.txt | AC | 0 ms | 128 KB |
09.txt | AC | 1 ms | 128 KB |
10.txt | AC | 1 ms | 128 KB |
11.txt | AC | 1 ms | 128 KB |
12.txt | AC | 1 ms | 128 KB |
13.txt | AC | 1 ms | 128 KB |
14.txt | AC | 1 ms | 128 KB |
15.txt | AC | 1 ms | 128 KB |
16.txt | AC | 1 ms | 128 KB |
17.txt | AC | 1 ms | 128 KB |
18.txt | AC | 1 ms | 128 KB |
19.txt | AC | 0 ms | 128 KB |
20.txt | AC | 1 ms | 128 KB |
21.txt | AC | 0 ms | 128 KB |
22.txt | AC | 1 ms | 128 KB |
23.txt | AC | 1 ms | 128 KB |
24.txt | AC | 1 ms | 128 KB |
25.txt | AC | 1 ms | 128 KB |
26.txt | AC | 1 ms | 128 KB |
27.txt | AC | 1 ms | 128 KB |
28.txt | AC | 0 ms | 128 KB |
29.txt | AC | 1 ms | 128 KB |
30.txt | AC | 1 ms | 128 KB |
31.txt | AC | 1 ms | 128 KB |
32.txt | AC | 1 ms | 128 KB |
33.txt | AC | 0 ms | 128 KB |
34.txt | AC | 1 ms | 128 KB |
35.txt | AC | 1 ms | 128 KB |
36.txt | AC | 0 ms | 128 KB |
37.txt | AC | 1 ms | 128 KB |
38.txt | AC | 1 ms | 128 KB |
39.txt | AC | 1 ms | 128 KB |
40.txt | AC | 1 ms | 128 KB |
41.txt | AC | 0 ms | 128 KB |
42.txt | AC | 0 ms | 128 KB |
43.txt | AC | 1 ms | 128 KB |
44.txt | AC | 1 ms | 128 KB |
45.txt | AC | 1 ms | 128 KB |
46.txt | AC | 0 ms | 128 KB |
47.txt | AC | 1 ms | 128 KB |
48.txt | AC | 1 ms | 128 KB |
49.txt | AC | 1 ms | 128 KB |
50.txt | AC | 0 ms | 128 KB |
51.txt | AC | 1 ms | 128 KB |
52.txt | AC | 1 ms | 128 KB |
53.txt | AC | 0 ms | 128 KB |
54.txt | AC | 1 ms | 128 KB |
55.txt | AC | 1 ms | 128 KB |
56.txt | AC | 1 ms | 128 KB |
s1.txt | AC | 1 ms | 128 KB |
s2.txt | AC | 1 ms | 128 KB |
s3.txt | AC | 1 ms | 128 KB |