oj.uz

Submission #939095

# Submission time Handle Problem Language Result Execution time Memory
939095 2024-03-06T05:37:10 Z vjudge1 Stove (JOI18_stove) C++17
100 / 100
 22 ms 27868 KB 
#include <bits/stdc++.h>  
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("Ofast") 
//#pragma comment(linker, "/stack:200000000") 
#pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native" ) 
#pragma GCC optimize("unroll-loops")
/* 
#pragma GCC optimize("profile-values,profile-reorder-functions,tracer") 
#pragma GCC optimize("vpt") 
#pragma GCC optimize("rename-registers") 
#pragma GCC optimize("move-loop-invariants") 
#pragma GCC optimize("unswitch-loops") 
#pragma GCC optimize("function-sections") 
#pragma GCC optimize("data-sections") 
#pragma GCC optimize("branch-target-load-optimize") 
#pragma GCC optimize("branch-target-load-optimize2") 
#pragma GCC optimize("btr-bb-exclusive") 
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse") 
#pragma GCC optimize("-fgcse-lm") 
#pragma GCC optimize("-fipa-sra") 
#pragma GCC optimize("-ftree-pre") 
#pragma GCC optimize("-ftree-vrp") 
#pragma GCC optimize("-fpeephole2") 
#pragma GCC optimize("-ffast-math") 
#pragma GCC optimize("-fsched-spec") 
#pragma GCC optimize("-falign-jumps") 
#pragma GCC optimize("-falign-loops") 
#pragma GCC optimize("-falign-labels") 
#pragma GCC optimize("-fdevirtualize") 
#pragma GCC optimize("-fcaller-saves") 
#pragma GCC optimize("-fcrossjumping") 
#pragma GCC optimize("-fthread-jumps") 
#pragma GCC optimize("-freorder-blocks") 
#pragma GCC optimize("-fschedule-insns") 
#pragma GCC optimize("inline-functions") 
#pragma GCC optimize("-ftree-tail-merge") 
#pragma GCC optimize("-fschedule-insns2") 
#pragma GCC optimize("-fstrict-aliasing") 
#pragma GCC optimize("-falign-functions") 
#pragma GCC optimize("-fcse-follow-jumps") 
#pragma GCC optimize("-fsched-interblock") 
#pragma GCC optimize("-fpartial-inlining") 
#pragma GCC optimize("no-stack-protector") 
#pragma GCC optimize("-freorder-functions") 
#pragma GCC optimize("-findirect-inlining") 
#pragma GCC optimize("-fhoist-adjacent-loads") 
#pragma GCC optimize("-frerun-cse-after-loop") 
#pragma GCC optimize("inline-small-functions") 
#pragma GCC optimize("-finline-small-functions") 
#pragma GCC optimize("-ftree-switch-conversion") 
#pragma GCC optimize("-foptimize-sibling-calls") 
#pragma GCC optimize("-fexpensive-optimizations") 
#pragma GCC optimize("inline-functions-called-once") 
#pragma GCC optimize("-fdelete-null-pointer-checks")
*/
#define ll long long 
#define all(x) x.begin(),x.end()
#define sz(x) (int) x.size()
#define f first
#define s second
#define ld long double
#define yes cout << "YES" << endl
#define no cout << "NO" << endl
#define pb push_back
#define dauzhan gay
#define popcount __builtin_popcount
#define int long long
const long double Eps = 1e-12; 
const int max1 = 1e9 + 100; 
const int min1 = -1e9 *1.4;
const ll mod1 = 1000000007;
const ll mod2 = 2000000011;
const ll mod3 = 3000000017;
const ll mod = 998244353;
const int N = 2e5 + 100;
const int B = 1e6 + 1;
const ll INF = 1e18 + 100;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
ll binpow(ll x,ll y,ll md) {
    if(y < 0) return 0;
    if(y == 0) return 1;        
    if(y == 1) return x;
    if(y % 2 == 0) {
        ll now = binpow(x,y/2,md);
        return (1ll*now*now) % md;
    }
    else {
        ll now = binpow(x,y/2,md);
        return (1ll*((1ll*now*now) % md)*x) % md;
    }
}
/*
for(int i = 1;i <= n;i++) sp[0][i] = a[i];
for(int i = 1;i <= log2(n);i++) {
    for(int l = 1;l <= n;l++) {
        int r = l + (1 << i) - 1;
        if(r > n) break;
        int middle = l + (1 << (i - 1));
        sp[i][l] = max(sp[i - 1][l],sp[i - 1][middle]);
    }
}
int get(int l,int r) {
    int g = log2(r - l + 1);
    return max(sp[g][l],sp[g][r - (1 << g) + 1]);
} 
*/
vector <int> reb[B];
bool was[B];
int mx[B],mn[B];
void dfs1(int v) {
    mx[v] = v,mn[v] = v;
    was[v] = true;
    for(auto u:reb[v]) {
        if(was[u]) continue;
        dfs1(u);
        mx[v] = max(mx[v],mx[u]);
        mn[v] = min(mn[v],mn[u]);
    }
}
bool was2[B];
void dfs2(int v) {
    was2[v] = true;
    for(auto u:reb[v]) {

    }
}
signed main() {
    ios_base::sync_with_stdio(NULL);
    cin.tie(0);
    cout.tie(0);    
    int n,k;
    cin >> n >> k;
    int t[n + 1];
    for(int i = 1;i <= n;i++) cin >> t[i];
    vector <int> v;
    for(int i = 2;i <= n;i++) v.pb(t[i] - t[i - 1]);
    sort(all(v));
    int ans = n;
    int ost = n - k;
    for(int i = 0;i < ost;i++) {
        ans+=v[i] - 1;
    }
    cout << ans << endl;
}

Compilation message

stove.cpp: In function 'void dfs2(long long int)':
stove.cpp:125:14: warning: unused variable 'u' [-Wunused-variable]
  125 |     for(auto u:reb[v]) {
      |              ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 24920 KB Output is correct
2 Correct 5 ms 24924 KB Output is correct
3 Correct 6 ms 24924 KB Output is correct
4 Correct 6 ms 24764 KB Output is correct
5 Correct 7 ms 24924 KB Output is correct
6 Correct 6 ms 24924 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct
8 Correct 6 ms 24924 KB Output is correct
9 Correct 6 ms 24924 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 24920 KB Output is correct
2 Correct 5 ms 24924 KB Output is correct
3 Correct 6 ms 24924 KB Output is correct
4 Correct 6 ms 24764 KB Output is correct
5 Correct 7 ms 24924 KB Output is correct
6 Correct 6 ms 24924 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct
8 Correct 6 ms 24924 KB Output is correct
9 Correct 6 ms 24924 KB Output is correct
10 Correct 8 ms 24924 KB Output is correct
11 Correct 6 ms 24924 KB Output is correct
12 Correct 6 ms 24924 KB Output is correct
13 Correct 6 ms 25076 KB Output is correct
14 Correct 6 ms 24920 KB Output is correct
15 Correct 6 ms 25176 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 24920 KB Output is correct
2 Correct 5 ms 24924 KB Output is correct
3 Correct 6 ms 24924 KB Output is correct
4 Correct 6 ms 24764 KB Output is correct
5 Correct 7 ms 24924 KB Output is correct
6 Correct 6 ms 24924 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct
8 Correct 6 ms 24924 KB Output is correct
9 Correct 6 ms 24924 KB Output is correct
10 Correct 8 ms 24924 KB Output is correct
11 Correct 6 ms 24924 KB Output is correct
12 Correct 6 ms 24924 KB Output is correct
13 Correct 6 ms 25076 KB Output is correct
14 Correct 6 ms 24920 KB Output is correct
15 Correct 6 ms 25176 KB Output is correct
16 Correct 20 ms 27860 KB Output is correct
17 Correct 20 ms 27868 KB Output is correct
18 Correct 20 ms 27864 KB Output is correct
19 Correct 21 ms 27868 KB Output is correct
20 Correct 21 ms 27776 KB Output is correct
21 Correct 22 ms 27868 KB Output is correct
22 Correct 21 ms 27868 KB Output is correct
23 Correct 20 ms 27868 KB Output is correct
24 Correct 20 ms 27868 KB Output is correct