#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// using namespace __gnu_pbds;
using namespace std;
//-----------------------
// #define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define ll long long
#define ull unsigned long long
#define pb push_back
#define pf push_front
#define mp make_pair
#define mem(f,x) memset(f, x, sizeof(f))
#define __lcm(a, b) (1ll * a * b) / __gcd(a, b)
#define bit(mask, i) ((mask >> i) & 1)
#define pii pair<int, int>
#define pll pair<ll, ll>
#define el '\n'
#define F first
#define S second
#define io(x) freopen(x".inp","r",stdin),freopen(x".out","w",stdout)
//-----------------------
const ll INF = 1e18;
const int MOD = 1e9 + 7;
const int MULTI = 0;
const int dx[4] = {0, 0, 1, -1}; //R L D U
const int dy[4] = {1, -1, 0, 0};
//-----AUTHOR trvhung VNG High School for Gifted Student-----
const int maxn = 1e5 + 5;
int n, k, a[maxn];
void solve() {
cin >> n >> k;
for (int i = 1; i <= n; ++i)
cin >> a[i];
vector<int> v;
for (int i = 2; i <= n; ++i)
v.pb(a[i] - a[i - 1] - 1);
sort(v.begin(), v.end());
int ans = a[n] - a[1] + 1;
for (int i = v.size() - 1; i >= v.size() - k + 1; --i)
ans -= v[i];
cout << ans;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#ifndef ONLINE_JUDGE
freopen("input.inp", "r", stdin);
freopen("output.out", "w", stdout);
#endif
if (!MULTI) solve();
else {
int test; cin >> test;
while (test--) solve();
}
return 0;
}
Compilation message
stove.cpp: In function 'void solve()':
stove.cpp:43:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
43 | for (int i = v.size() - 1; i >= v.size() - k + 1; --i)
| ~~^~~~~~~~~~~~~~~~~~~
stove.cpp: In function 'int main()':
stove.cpp:54:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
54 | freopen("input.inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:55:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
55 | freopen("output.out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
3 ms |
600 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
3 ms |
600 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
3 ms |
600 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |