Submission #377157

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
377157	2021-03-13 04:59:35	wzy	Fireworks (APIO16_fireworks)	C++11	100 / 100	567 ms	129004 KiB

fireworks

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#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define per(i, a, b) for(int i = b-1; i>=a ; i--)
#define trav(a, x) for(auto& a : x)
#define allin(a , x) for(auto a : x)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<ll> vl;
typedef vector<pii> vpi;
typedef pair<ll,ll> pll;
typedef vector<string> vs;
typedef vector<pll> vpl;
typedef vector<int> vi;
std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());
struct convex_envelope{
  long long a = 0 , b = 0;
  multiset<long long> changes;
  convex_envelope(){
    a = b = 0;
  }
  convex_envelope(long long a , long long b , multiset<long long> changes) : a(a) , b(b) , changes(changes){} 
  void merge(convex_envelope &rhs){
    a += rhs.a , b += rhs.b;
    if(sz(rhs.changes) > sz(changes))
 
 
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Compilation message (stderr)

fireworks.cpp: In function 'int32_t main()':
fireworks.cpp:71:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   71 |  scanf("%d%d" , &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~
fireworks.cpp:74:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   74 |   scanf("%d%d" , &p , &c[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 19 / 19
• Subtask 3: 29 / 29
• Subtask 4: 45 / 45