Submission #994277
Source Code Expand
#include <bits/stdc++.h> using namespace std; int main(void){ int N,M; cin >> N >> M; vector<int> x(N); vector<int> nums(200001); for(int i=0;i<N;i++){ cin >> x[i]; nums[ abs( x[i] - ceil(1. * x[i] / M) * M ) ]++; } if( M == 1 ){ cout << N/2 << endl; return 0; } int ret = 0; for(int i=0;i<=M;i++){ // if(nums[i]) // cout << i << " " << nums[i] << endl; int mx = min(nums[i],nums[M-i]); nums[i] -= mx; nums[M-i] -= mx; ret += mx; // if(nums[i] >= 2){ // int same = nums[i] / 2; // ret += same; // nums[i] -= same * 2; // } // if(nums[M-i] >= 2){ // int same = nums[M-i] / 2; // ret += same; // nums[M-i] -= same * 2; // } } cout << ret << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | tkzw_21 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 760 Byte |
Status | WA |
Exec Time | 33 ms |
Memory | 1536 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 | 3 ms | 1024 KB |
01-02.txt | AC | 31 ms | 1408 KB |
01-03.txt | WA | 31 ms | 1408 KB |
01-04.txt | WA | 31 ms | 1408 KB |
01-05.txt | WA | 31 ms | 1408 KB |
01-06.txt | WA | 31 ms | 1408 KB |
01-07.txt | WA | 32 ms | 1408 KB |
01-08.txt | WA | 32 ms | 1408 KB |
01-09.txt | WA | 31 ms | 1408 KB |
01-10.txt | WA | 32 ms | 1408 KB |
01-11.txt | WA | 32 ms | 1408 KB |
01-12.txt | WA | 32 ms | 1408 KB |
01-13.txt | WA | 32 ms | 1408 KB |
01-14.txt | AC | 31 ms | 1536 KB |
01-15.txt | WA | 31 ms | 1408 KB |
01-16.txt | WA | 31 ms | 1408 KB |
01-17.txt | WA | 31 ms | 1408 KB |
01-18.txt | WA | 31 ms | 1408 KB |
01-19.txt | WA | 31 ms | 1408 KB |
01-20.txt | WA | 32 ms | 1408 KB |
01-21.txt | WA | 32 ms | 1408 KB |
01-22.txt | WA | 32 ms | 1408 KB |
01-23.txt | WA | 31 ms | 1408 KB |
01-24.txt | WA | 33 ms | 1408 KB |
01-25.txt | WA | 31 ms | 1408 KB |
01-26.txt | WA | 32 ms | 1408 KB |
01-27.txt | WA | 18 ms | 1280 KB |
01-28.txt | WA | 5 ms | 1024 KB |
01-29.txt | AC | 4 ms | 1024 KB |
01-30.txt | AC | 4 ms | 1024 KB |
sample-01.txt | AC | 3 ms | 1024 KB |
sample-02.txt | AC | 3 ms | 1024 KB |