Submission #2123603
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 5; int n, m, a[N]; vector<int> vec[N]; int res; int main() { scanf("%d %d", &n, &m); for (int i = 1; i <= n; ++i) { scanf("%d", a + i); vec[a[i] % m].push_back(a[i]); } for (int val = 0; val < m; ++val) { sort(vec[val].begin(), vec[val].end()); } for (int i = 0; i < m; ++i) { int j = (m - i) % m; if (i == j) { res += vec[i].size() / 2; continue; } while(vec[i].size() && vec[j].size()) { ++res; vec[i].pop_back(); vec[j].pop_back(); } } for (int i = 1; i < m; ++i) { int ptr = 0; while(ptr < (int)vec[i].size() - 1) { if (vec[i][ptr] == vec[i][ptr + 1]) { ptr += 2; ++res; } else { ++ptr; } } } printf("%d\n", res); }
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | cheater2k |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 802 Byte |
Status | WA |
Exec Time | 23 ms |
Memory | 6144 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:11:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ ./Main.cpp:13:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", a + i); ^
Judge Result
Set Name | sample | all | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 700 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
sample | sample-01.txt, sample-02.txt |
all | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, sample-01.txt, sample-02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 3 ms | 2688 KB |
01-02.txt | AC | 19 ms | 3452 KB |
01-03.txt | WA | 19 ms | 3580 KB |
01-04.txt | WA | 18 ms | 3584 KB |
01-05.txt | WA | 18 ms | 3584 KB |
01-06.txt | WA | 18 ms | 3712 KB |
01-07.txt | WA | 17 ms | 3456 KB |
01-08.txt | WA | 17 ms | 3584 KB |
01-09.txt | WA | 17 ms | 3584 KB |
01-10.txt | WA | 21 ms | 4224 KB |
01-11.txt | AC | 23 ms | 4992 KB |
01-12.txt | AC | 14 ms | 3452 KB |
01-13.txt | AC | 14 ms | 3452 KB |
01-14.txt | AC | 18 ms | 3472 KB |
01-15.txt | AC | 18 ms | 3584 KB |
01-16.txt | AC | 17 ms | 3712 KB |
01-17.txt | AC | 17 ms | 3456 KB |
01-18.txt | AC | 18 ms | 3840 KB |
01-19.txt | AC | 19 ms | 3712 KB |
01-20.txt | AC | 21 ms | 6144 KB |
01-21.txt | WA | 18 ms | 3520 KB |
01-22.txt | WA | 17 ms | 3456 KB |
01-23.txt | WA | 16 ms | 3584 KB |
01-24.txt | WA | 16 ms | 3584 KB |
01-25.txt | AC | 17 ms | 3712 KB |
01-26.txt | AC | 18 ms | 3712 KB |
01-27.txt | AC | 12 ms | 4352 KB |
01-28.txt | AC | 4 ms | 2688 KB |
01-29.txt | AC | 3 ms | 2560 KB |
01-30.txt | AC | 3 ms | 2560 KB |
sample-01.txt | AC | 2 ms | 2560 KB |
sample-02.txt | AC | 2 ms | 2560 KB |