Submission #365472

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
365472	2021-02-11 17:35:12	Sparky_09	Sorting (IOI15_sorting)	C++17	100 / 100	178 ms	21356 KiB

sorting

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#include "sorting.h"
#include "bits/stdc++.h"
using namespace std;
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define trav(a, x) for(auto& a : x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<ll, ll> pii;
typedef vector<ll> vi;
typedef vector<pii> vpi;
void usaco(string s){
  freopen((s+".in").c_str(), "r", stdin);
  freopen((s+".out").c_str(), "w", stdout);
}
const int N = 6e5 + 9;
int C[N], n, *A, *B, pt[N], dy[N];
bool vis[N];
bool Check(int x){
  int cnt = 0, cb = 0;
  for (int i = 0; i < n; ++i) if (!vis[i]) {
    ++cnt;
    for (int j = i; ; j = C[j]){
      vis[j] = 1;
      if (!vis[C[j]]) A[cb] = i, B[cb] = C[j], ++cb;
      else break;
    }
 
 
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Compilation message (stderr)

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:37:40: warning: unused parameter 'M' [-Wunused-parameter]
   37 | int findSwapPairs(int NN, int S[], int M, int X[], int Y[], int P[], int Q[]){
      |                                    ~~~~^
sorting.cpp: In function 'void usaco(std::string)':
sorting.cpp:14:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   14 |   freopen((s+".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sorting.cpp:15:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   15 |   freopen((s+".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 12 / 12
• Subtask 3: 16 / 16
• Subtask 4: 18 / 18
• Subtask 5: 20 / 20
• Subtask 6: 26 / 26