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Submission #206645

# Submission time Handle Problem Language Result Execution time Memory
206645 2020-03-04T10:51:44 Z bukanYohandi Stove (JOI18_stove) C++14
100 / 100
 29 ms 1784 KB 
#include <bits/stdc++.h>

#define fs first
#define sc second
#define pb push_back
#define eb emplace_back
#define all(a) a.begin(),a.end()

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

using namespace std;
using lint=long long;

mt19937 rng(time(NULL));

lint Power(lint A,lint B,lint C){
	if(!B) return 1;
	lint tmp=Power(A,B>>1,C);
	return tmp*tmp%C*(B&1?A:1)%C;
}

int N,K,Ans;
int A[100000],B[100000];

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin>>N>>K;	
	for(int i=0;i<N;++i) cin>>A[i];
	Ans=A[N-1]-A[0]+1;
	for(int i=0;i<N-1;++i) B[i]=A[i]-A[i+1]+1;
	sort(B,B+N-1);
	for(int i=0;i<K-1;++i) Ans+=B[i];
	cout<<Ans<<"\n";
	return 0;
}

/*
                              ,,aaaaa,,
                           ,dP"''    `""""Ya,
                       ,aP"'                `"Yb,
                     ,8"'                       `"8a,
                   ,8"                             `"8,
                 ,8"                                  "Yb,
               ,8"                                      `8,
              dP'                                        8I
            ,8"                           bg,           ,P'
           ,8'                              "Y8"Ya,,,,ad"
          ,d"                            a,  I8   `"""'
         ,8'                              ""888
         dP                                  `Yb,
        dP'   ,d8P::::Y8b,                     `Ya
   ,adba8',d88P::;;::;;;:"b:::Ya,                Ya
  dP":::"Y88P:;P"""YP"""Yb;::::::"Ya,             "Y,
  8:::::::Yb;d" _  "_    dI:::::::::"Yb,  ,,gd88ba,db
  Yb:::::::"8(,8P _d8   d8:::::::::::::Y88P"::::::Y8I
  `Yb;:::::::""::"":b,,dP::::::::::::::::::;aaa;:::8(
    `Y8a;:::::::::::::::::::::;;::::::::::8P""Y8)::8I
      8b"ba::::::::::::::::;adP:::::::::::":::dP::;8'
      `8b;::::::::::::;aad888P::::::::::::::;dP::;8'
       `8b;::::::::""""88"  d::::::::::b;:::::;;dP'
         "Yb;::::::::::Y8bad::::::::::;"8Paaa""'
           `"Y8a;;;:::::::::::::;;aadP""
               ``""Y88bbbdddd88P""8b,
                        _,d8"::::::"8b,
                      ,dP8"::::::;;:::"b,
                    ,dP"8:::::::Yb;::::"b,
                  ,8P:dP:::::::::Yb;::::"b,
               _,dP:;8":::::::::::Yb;::::"b
     ,aaaaaa,,d8P:::8":::::::::::;dP:::::;8
  ,ad":;;:::::"::::8"::::::::::;dP::::::;dI
 dP";adP":::::;:;dP;::::aaaad88"::::::adP:8b,
d8:::8;;;aadP"::8'Y8:d8P"::::::::::;dP";d"'`Yb:"b
8I:::;""":::::;dP I8P"::::::::::;a8"a8P"     "b:P
Yb::::"8baa8"""'  8;:;d"::::::::d8P"'         8"
 "YbaaP::8;P      `8;d::;a::;;;;dP           ,8
    `"Y8P"'         Yb;;d::;aadP"           ,d'
                     "YP:::"P'             ,d'
                       "8bdP'    _        ,8'
                      ,8"`""Yba,d"      ,d"
                     ,P'     d"8'     ,d"
                    ,8'     d'8'     ,P'
                    (b      8 I      8,
                     Y,     Y,Y,     `b,
               ____   "8,__ `Y,Y,     `Y""b,
           ,adP""""b8P""""""""Ybdb,        Y,
         ,dP"    ,dP'            `""       `8
        ,8"     ,P'                        ,P
        8'      8)                        ,8'
        8,      Yb                      ,aP'
        `Ya      Yb                  ,ad"'
          "Ya,___ "Ya             ,ad"'
            ``""""""`Yba,,,,,,,adP"'
                       `"""""""'
*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 4 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 4 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 6 ms 376 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 4 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 6 ms 376 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 28 ms 1784 KB Output is correct
17 Correct 28 ms 1784 KB Output is correct
18 Correct 27 ms 1784 KB Output is correct
19 Correct 28 ms 1784 KB Output is correct
20 Correct 29 ms 1784 KB Output is correct
21 Correct 28 ms 1784 KB Output is correct
22 Correct 27 ms 1784 KB Output is correct
23 Correct 27 ms 1784 KB Output is correct
24 Correct 28 ms 1784 KB Output is correct