Submission #996200
Source Code Expand
#include <map> #include <vector> #include <iostream> #pragma warning(disable : 4996) using namespace std; int n, m, x; int main() { scanf("%d%d", &n, &m); vector<vector<int> > f(m); vector<int> c(m); for (int i = 0; i < n; i++) { scanf("%d", &x); f[x % m].push_back(x); c[x % m]++; } for (int i = 0; i < m; i++) { map<int, int> e; for (int j : f[i]) e[j]++; vector<int> g; for (pair<int, int> j : e) g.push_back(j.second); f[i] = g; } int ret = 0; for (int i = 0; i <= m / 2; i++) { int p = (m - i) % m; if (i == p) { f[i].clear(); ret += c[i] / 2; c[i] = 0; } else { if (c[i] < c[p]) swap(c[i], c[p]); f[p].clear(); ret += c[p]; while (c[p]--) { bool flag = false; for (int j = 0; j < f[i].size() && !flag; j++) { if (f[i][j] % 2 == 1) { f[i][j]--; flag = true; } } if (!flag) { for (int j = 0; j < f[i].size(); j++) { if (f[i][j] != 0) { f[i][j]--; break; } } } } for (int j = 0; j < f[i].size(); j++) ret += f[i][j] / 2; c[p] = 0; f[i].clear(); c[i] = 0; } } cout << ret << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | square1001 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1181 Byte |
Status | WA |
Exec Time | 535 ms |
Memory | 6144 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:8:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ ./Main.cpp:12:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^
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 | 256 KB |
01-02.txt | AC | 42 ms | 4088 KB |
01-03.txt | AC | 37 ms | 2428 KB |
01-04.txt | WA | 535 ms | 1912 KB |
01-05.txt | AC | 315 ms | 1536 KB |
01-06.txt | WA | 213 ms | 1152 KB |
01-07.txt | WA | 106 ms | 768 KB |
01-08.txt | WA | 28 ms | 896 KB |
01-09.txt | WA | 26 ms | 896 KB |
01-10.txt | WA | 30 ms | 2560 KB |
01-11.txt | WA | 34 ms | 4992 KB |
01-12.txt | AC | 13 ms | 896 KB |
01-13.txt | AC | 15 ms | 2044 KB |
01-14.txt | AC | 45 ms | 3404 KB |
01-15.txt | AC | 428 ms | 1936 KB |
01-16.txt | AC | 78 ms | 1024 KB |
01-17.txt | AC | 32 ms | 768 KB |
01-18.txt | AC | 30 ms | 1152 KB |
01-19.txt | AC | 29 ms | 1280 KB |
01-20.txt | AC | 36 ms | 6144 KB |
01-21.txt | AC | 21 ms | 768 KB |
01-22.txt | WA | 40 ms | 768 KB |
01-23.txt | WA | 21 ms | 896 KB |
01-24.txt | WA | 16 ms | 896 KB |
01-25.txt | WA | 19 ms | 1792 KB |
01-26.txt | WA | 23 ms | 3712 KB |
01-27.txt | AC | 21 ms | 4480 KB |
01-28.txt | WA | 8 ms | 3072 KB |
01-29.txt | AC | 5 ms | 1408 KB |
01-30.txt | AC | 7 ms | 2944 KB |
sample-01.txt | AC | 3 ms | 256 KB |
sample-02.txt | AC | 3 ms | 256 KB |