Submission #3770399
Source Code Expand
#include <cstdio> #include <algorithm> using namespace std; #define REP(i, n) for(int i = 0; i < (int)(n); ++i) typedef long long ll; int vs[200000+10]; int n; ll ss[200000+10]; ll xs[200000+10]; int main(void) { scanf("%d", &n); REP(i, n) { scanf("%d", &vs[i]); xs[i+1] = xs[i] ^ vs[i]; ss[i+1] = ss[i] + vs[i]; } ll res = 0; REP(i, n) { int left = i; int right = n; while(left + 1 < right) { int md = (left + right) / 2; ll s = ss[md+1] - ss[i]; ll x = xs[md+1] ^ xs[i]; if(s == x) { left = md; } else { right = md; } } res += left-i+1; } printf("%lld\n", res); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Xor Sum 2 |
User | ush |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 727 Byte |
Status | AC |
Exec Time | 39 ms |
Memory | 4096 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:14:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:16:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &vs[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample_01.txt, sample_02.txt, sample_03.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt, subtask_1_28.txt, subtask_1_29.txt, subtask_1_30.txt, subtask_1_31.txt, subtask_1_32.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 1 ms | 128 KB |
sample_02.txt | AC | 1 ms | 128 KB |
sample_03.txt | AC | 1 ms | 128 KB |
subtask_1_01.txt | AC | 1 ms | 128 KB |
subtask_1_02.txt | AC | 1 ms | 128 KB |
subtask_1_03.txt | AC | 28 ms | 3328 KB |
subtask_1_04.txt | AC | 1 ms | 256 KB |
subtask_1_05.txt | AC | 19 ms | 2304 KB |
subtask_1_06.txt | AC | 14 ms | 1536 KB |
subtask_1_07.txt | AC | 1 ms | 256 KB |
subtask_1_08.txt | AC | 15 ms | 1664 KB |
subtask_1_09.txt | AC | 24 ms | 2688 KB |
subtask_1_10.txt | AC | 27 ms | 2944 KB |
subtask_1_11.txt | AC | 29 ms | 3328 KB |
subtask_1_12.txt | AC | 36 ms | 3968 KB |
subtask_1_13.txt | AC | 10 ms | 1280 KB |
subtask_1_14.txt | AC | 8 ms | 1024 KB |
subtask_1_15.txt | AC | 13 ms | 1664 KB |
subtask_1_16.txt | AC | 1 ms | 256 KB |
subtask_1_17.txt | AC | 34 ms | 4096 KB |
subtask_1_18.txt | AC | 36 ms | 4096 KB |
subtask_1_19.txt | AC | 36 ms | 4096 KB |
subtask_1_20.txt | AC | 39 ms | 4096 KB |
subtask_1_21.txt | AC | 37 ms | 4096 KB |
subtask_1_22.txt | AC | 39 ms | 4096 KB |
subtask_1_23.txt | AC | 37 ms | 4096 KB |
subtask_1_24.txt | AC | 39 ms | 4096 KB |
subtask_1_25.txt | AC | 37 ms | 4096 KB |
subtask_1_26.txt | AC | 39 ms | 4096 KB |
subtask_1_27.txt | AC | 34 ms | 4096 KB |
subtask_1_28.txt | AC | 34 ms | 4096 KB |
subtask_1_29.txt | AC | 35 ms | 4096 KB |
subtask_1_30.txt | AC | 34 ms | 4096 KB |
subtask_1_31.txt | AC | 35 ms | 4096 KB |
subtask_1_32.txt | AC | 35 ms | 4096 KB |