Submission #501691

#	Time	Username	Problem	Language	Result	Execution time	Memory
501691		vinnipuh01	Stove (JOI18_stove)	C++17	100 / 100	48 ms	3484 KiB

stove

#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>

using namespace std;

const long long oo = 1000000000000000000;

long long int  sum, ans = 0, mx = 0, mn = 1000000000, num, pos;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen ( "sum.in", "r", stdin )
*/

int n, m, a[ 100001 ];
vector <pair<int, int> > v;
vector <int> vv;

int main () {
	cin >> n >> m;
	ans = n;
	num = n - m;
	for ( int i = 1; i <= n; i ++ )
		cin >> a[ i ];
	for ( int i = 1; i <= n; i ++ )
		v.push_back( { a[ i ], a[ i ] + 1 } );
	for ( int i = 1; i < v.size(); i ++ ) {
		vv.push_back( v[ i ].first - v[ i - 1 ].second );
	}
	sort( vv.begin(), vv.end() );
	for ( int i = 0; i < num; i ++ ) {
		ans += vv[ i ];
	}
	cout << ans;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:57:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |  for ( int i = 1; i < v.size(); i ++ ) {
      |                   ~~^~~~~~~~~~

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