Submission #992884
Source Code Expand
#include<iostream> #include<vector> #include<set> using namespace std; int main(){ int n, m; std::cin >> n >> m; vector<int> x(n), raw(n); for (int i = 0; i < n; i++) { std::cin >> raw[i]; x[i] = raw[i]%m; } vector<int> mod(m, 0); for (int i = 0; i < n; i++) { mod[x[i]]++; } int ans = 0, tmp; for (int i = 1; i < m/2.0; i++) { tmp = min(mod[i], mod[m - i]); ans += tmp; mod[i] -= tmp; mod[m - i] -= tmp; } if(m%2 == 0){ tmp = mod[m/2]/2; ans += tmp; mod[m/2] -= tmp*2; } tmp = mod[0]/2; ans += tmp; mod[0] -= tmp; set<int> s; for (int i = 0; i < n; i++) { if(s.find(raw[i]) != s.end() and mod[raw[i]%m] >= 2){ mod[raw[i]%m] -= 2; ans++; } s.insert(raw[i]); } std::cout << ans + mod[0]/2 << std::endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | kurikazu |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 864 Byte |
Status | WA |
Exec Time | 72 ms |
Memory | 6144 KB |
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 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 2 ms | 256 KB |
01-02.txt | WA | 66 ms | 3968 KB |
01-03.txt | WA | 66 ms | 3968 KB |
01-04.txt | WA | 66 ms | 3968 KB |
01-05.txt | WA | 69 ms | 3968 KB |
01-06.txt | WA | 66 ms | 3968 KB |
01-07.txt | WA | 65 ms | 3968 KB |
01-08.txt | WA | 65 ms | 3968 KB |
01-09.txt | WA | 66 ms | 3968 KB |
01-10.txt | WA | 67 ms | 4096 KB |
01-11.txt | AC | 67 ms | 4352 KB |
01-12.txt | AC | 32 ms | 1024 KB |
01-13.txt | AC | 33 ms | 1152 KB |
01-14.txt | WA | 71 ms | 5760 KB |
01-15.txt | WA | 71 ms | 5760 KB |
01-16.txt | WA | 71 ms | 5760 KB |
01-17.txt | WA | 71 ms | 5760 KB |
01-18.txt | WA | 70 ms | 5760 KB |
01-19.txt | WA | 72 ms | 5760 KB |
01-20.txt | AC | 71 ms | 6144 KB |
01-21.txt | WA | 47 ms | 1152 KB |
01-22.txt | WA | 47 ms | 1152 KB |
01-23.txt | WA | 47 ms | 1152 KB |
01-24.txt | WA | 47 ms | 1152 KB |
01-25.txt | WA | 47 ms | 1280 KB |
01-26.txt | AC | 48 ms | 1536 KB |
01-27.txt | AC | 35 ms | 3328 KB |
01-28.txt | AC | 5 ms | 768 KB |
01-29.txt | AC | 3 ms | 384 KB |
01-30.txt | AC | 3 ms | 640 KB |
sample-01.txt | AC | 3 ms | 256 KB |
sample-02.txt | AC | 2 ms | 256 KB |