Submission #1256645

#	Time	Username	Problem	Language	Result	Execution time	Memory
1256645		nicecoder37	Stove (JOI18_stove)	C++20	50 / 100	1096 ms	5812 KiB

stove

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false),cin.tie(NULL),cout.tie(NULL)
#define fi first
#define se second
#define space " "
#define endl "\n"
#define gcd __gcd
#define mp make_pair
#define pb push_back
#define pf push_front
#define lb lower_bound
#define ub upper_bound
#define md 1000000007
#define inf 1000000000
#define li 500005
#define int long long
using namespace std;
int T,Q,n,m,a[li];
string s,t;
vector<pair<int,int> > v,vv;
int32_t main(){
	scanf("%lld %lld",&n,&m);
	for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
	for(int i=1;i<=n;i++){
		v.pb(mp(a[i],a[i]+1));
	}
	int sayi=n-m;
	while(sayi--){
		vv.clear();
		int mn=inf+1;
		for(int i=0;i<(int)v.size()-1;i++){
			mn=min(mn,v[i+1].fi-v[i].se);
		}
		int tut=0;
		for(int i=0;i<(int)v.size()-1;i++){
			if(v[i+1].fi-v[i].se==mn){tut=i; break;}
		}
		for(int i=0;i<tut;i++) vv.pb(mp(v[i].fi,v[i].se));
		vv.pb(mp(v[tut].fi,v[tut+1].se));
		for(int i=tut+2;i<(int)v.size();i++) vv.pb(mp(v[i].fi,v[i].se));
		v.clear();
		v=vv;
	}
	int cev=0;
	for(int i=0;i<(int)v.size();i++){
		cev+=v[i].se-v[i].fi;
	}
	printf("%lld\n",cev);
	return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int32_t main()':
stove.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%lld %lld",&n,&m);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~
stove.cpp:25:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
      |                               ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 0 / 50