Submission #11262761
Source Code Expand
#include <algorithm> #include <cstdio> #include <vector> using namespace std; int main() { int n, m, x[100000], cnt[100000] = {}; vector<vector<int> > v; scanf("%d%d", &n, &m); for (int i = 0; i < n; i++) { scanf("%d", &x[i]); } sort(x, x + n); for (int i = 0; i < n - 1; i++) { if (x[i] == x[i + 1]) { cnt[x[i] % m]++; i++; } } v.resize(m); for (int i = 0; i < n; i++) { v[x[i] % m].push_back(x[i]); } int ans = 0; for (int i = 0; i <= m / 2; i++) { if (i == 0 || m - i == i) { ans += v[i].size() / 2; } else { ans += min(v[i].size(), v[m - i].size()); int a; if (v[i].size() > v[i - 1].size()) { a = i; } else { a = m - i; } ans += min((int)((v[a].size() - v[m - a].size()) / 2), cnt[a]); } } printf("%d\n", ans); }
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | AC961009 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 883 Byte |
Status | WA |
Exec Time | 24 ms |
Memory | 6528 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:8:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ ./Main.cpp:10:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x[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 | 1 ms | 640 KB |
01-02.txt | AC | 18 ms | 1660 KB |
01-03.txt | AC | 18 ms | 1536 KB |
01-04.txt | AC | 18 ms | 1664 KB |
01-05.txt | AC | 18 ms | 1664 KB |
01-06.txt | AC | 18 ms | 1664 KB |
01-07.txt | WA | 18 ms | 1408 KB |
01-08.txt | WA | 18 ms | 1664 KB |
01-09.txt | WA | 19 ms | 1664 KB |
01-10.txt | WA | 23 ms | 3200 KB |
01-11.txt | WA | 24 ms | 5376 KB |
01-12.txt | AC | 13 ms | 1660 KB |
01-13.txt | AC | 13 ms | 2684 KB |
01-14.txt | AC | 18 ms | 1660 KB |
01-15.txt | AC | 18 ms | 1664 KB |
01-16.txt | WA | 18 ms | 1664 KB |
01-17.txt | WA | 18 ms | 1536 KB |
01-18.txt | WA | 19 ms | 1920 KB |
01-19.txt | WA | 20 ms | 1920 KB |
01-20.txt | AC | 24 ms | 6528 KB |
01-21.txt | AC | 17 ms | 1536 KB |
01-22.txt | WA | 17 ms | 1536 KB |
01-23.txt | WA | 17 ms | 1664 KB |
01-24.txt | WA | 17 ms | 1664 KB |
01-25.txt | WA | 18 ms | 2304 KB |
01-26.txt | WA | 19 ms | 3968 KB |
01-27.txt | WA | 13 ms | 4736 KB |
01-28.txt | WA | 3 ms | 3072 KB |
01-29.txt | WA | 2 ms | 1536 KB |
01-30.txt | AC | 3 ms | 2944 KB |
sample-01.txt | AC | 1 ms | 640 KB |
sample-02.txt | AC | 1 ms | 640 KB |