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Submission #1033797

# Submission time Handle Problem Language Result Execution time Memory
1033797 2024-07-25T06:31:22 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 355 ms 42724 KB 
#include <bits/stdc++.h>
using namespace std; 

using ll = long long;
using ld = long double;
using pll = pair<ll, ll>;

#define fi first
#define se second
#define all(a) (a).begin(), (a).end()

const ll N = 2e5 + 5;
const ll blocksz = 505;
const ll mod = 1e9 + 7;
const ll inf = 1e18;

ll n, q;
ll cnt[N], ans[N];
map<ll, ll> mp;

struct Info{
     ll x, y, z, id;
} a[N];

struct BIT{
     ll b[N];
     void upd(ll i, ll x){
          for (; i <= n + q; i += i & (-i)) b[i] += x;
     }
     ll get(ll i){
          ll ans = 0;
          for (; i; i -= i & (-i)) ans += b[i];
          return ans;
     }
} ft;

vector<ll> record;
vector<Info> tmp;

void CDQ(ll l, ll r){
     if (l == r) return;
     ll m = l + r >> 1;
     CDQ(l, m); CDQ(m + 1, r);

     ll i = l, j = m + 1, sum = 0;
     while (i <= m && j <= r){
          if (a[i].y > a[j].y){
               if (a[i].id <= n){
                    ++sum; ft.upd(a[i].z, 1); record.push_back(a[i].z);
               }
               tmp.push_back(a[i++]);
          }else{
               ans[a[j].id] += sum - ft.get(a[j].z); tmp.push_back(a[j++]);
          }    
     }

     while (i <= m) tmp.push_back(a[i++]);
     while (j <= r) ans[a[j].id] += sum - ft.get(a[j].z), tmp.push_back(a[j++]);

     for (int i = l; i <= r; ++i) a[i] = tmp[i - l];
     for (int i : record) ft.upd(i, -1);
     
     vector<ll> ().swap(record);
     vector<Info> ().swap(tmp);
}

void solve(){
     cin >> n >> q;
     vector<ll> v;
     for (int i = 1; i <= n; ++i){
          cin >> a[i].x >> a[i].y; a[i].z = a[i].x + a[i].y; a[i].id = i;
          v.push_back(a[i].z);
     }
     for (int i = n + 1; i <= n + q; ++i){
          cin >> a[i].x >> a[i].y >> a[i].z; a[i].id = i;
          --a[i].x; --a[i].y; --a[i].z;
          v.push_back(a[i].z); 
     }

     sort(all(v));
     v.erase(unique(all(v)), v.end());
     for (int i = 0; i < v.size(); ++i) mp[v[i]] = i + 1;
     for (int i = 1; i <= n + q; ++i) a[i].z = mp[a[i].z];

     sort(a + 1, a + n + q + 1, [&](Info A, Info B){
          return (A.x == B.x ? (A.y == B.y ? A.z < B.z : A.y < B.y) : A.x > B.x);
     });

     CDQ(1, n + q);
     for (int i = n + 1; i <= n + q; ++i) cout << ans[i] << "\n";
}    

signed main(){
     ios_base::sync_with_stdio(0); 
     cin.tie(0); cout.tie(0);
     ll run_case = 1; // cin >> run_case;
     while (run_case--){
          solve();
     }
}

Compilation message

examination.cpp: In function 'void CDQ(ll, ll)':
examination.cpp:42:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |      ll m = l + r >> 1;
      |             ~~^~~
examination.cpp: In function 'void solve()':
examination.cpp:82:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |      for (int i = 0; i < v.size(); ++i) mp[v[i]] = i + 1;
      |                      ~~^~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 7 ms 1692 KB Output is correct
8 Correct 6 ms 1564 KB Output is correct
9 Correct 6 ms 1688 KB Output is correct
10 Correct 6 ms 1852 KB Output is correct
11 Correct 8 ms 1688 KB Output is correct
12 Correct 4 ms 1200 KB Output is correct
13 Correct 5 ms 1428 KB Output is correct
14 Correct 6 ms 1464 KB Output is correct
15 Correct 5 ms 1432 KB Output is correct
16 Correct 4 ms 1360 KB Output is correct
17 Correct 6 ms 1688 KB Output is correct
18 Correct 3 ms 1208 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 240 ms 30864 KB Output is correct
2 Correct 261 ms 30948 KB Output is correct
3 Correct 267 ms 30988 KB Output is correct
4 Correct 226 ms 29660 KB Output is correct
5 Correct 197 ms 29652 KB Output is correct
6 Correct 129 ms 24948 KB Output is correct
7 Correct 223 ms 30984 KB Output is correct
8 Correct 231 ms 31072 KB Output is correct
9 Correct 215 ms 30736 KB Output is correct
10 Correct 172 ms 29696 KB Output is correct
11 Correct 213 ms 29792 KB Output is correct
12 Correct 114 ms 24936 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 240 ms 30864 KB Output is correct
2 Correct 261 ms 30948 KB Output is correct
3 Correct 267 ms 30988 KB Output is correct
4 Correct 226 ms 29660 KB Output is correct
5 Correct 197 ms 29652 KB Output is correct
6 Correct 129 ms 24948 KB Output is correct
7 Correct 223 ms 30984 KB Output is correct
8 Correct 231 ms 31072 KB Output is correct
9 Correct 215 ms 30736 KB Output is correct
10 Correct 172 ms 29696 KB Output is correct
11 Correct 213 ms 29792 KB Output is correct
12 Correct 114 ms 24936 KB Output is correct
13 Correct 291 ms 34796 KB Output is correct
14 Correct 276 ms 34136 KB Output is correct
15 Correct 216 ms 30940 KB Output is correct
16 Correct 276 ms 31572 KB Output is correct
17 Correct 220 ms 31700 KB Output is correct
18 Correct 129 ms 25092 KB Output is correct
19 Correct 274 ms 34776 KB Output is correct
20 Correct 290 ms 34048 KB Output is correct
21 Correct 300 ms 34844 KB Output is correct
22 Correct 170 ms 29692 KB Output is correct
23 Correct 189 ms 29664 KB Output is correct
24 Correct 107 ms 25348 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 7 ms 1692 KB Output is correct
8 Correct 6 ms 1564 KB Output is correct
9 Correct 6 ms 1688 KB Output is correct
10 Correct 6 ms 1852 KB Output is correct
11 Correct 8 ms 1688 KB Output is correct
12 Correct 4 ms 1200 KB Output is correct
13 Correct 5 ms 1428 KB Output is correct
14 Correct 6 ms 1464 KB Output is correct
15 Correct 5 ms 1432 KB Output is correct
16 Correct 4 ms 1360 KB Output is correct
17 Correct 6 ms 1688 KB Output is correct
18 Correct 3 ms 1208 KB Output is correct
19 Correct 240 ms 30864 KB Output is correct
20 Correct 261 ms 30948 KB Output is correct
21 Correct 267 ms 30988 KB Output is correct
22 Correct 226 ms 29660 KB Output is correct
23 Correct 197 ms 29652 KB Output is correct
24 Correct 129 ms 24948 KB Output is correct
25 Correct 223 ms 30984 KB Output is correct
26 Correct 231 ms 31072 KB Output is correct
27 Correct 215 ms 30736 KB Output is correct
28 Correct 172 ms 29696 KB Output is correct
29 Correct 213 ms 29792 KB Output is correct
30 Correct 114 ms 24936 KB Output is correct
31 Correct 291 ms 34796 KB Output is correct
32 Correct 276 ms 34136 KB Output is correct
33 Correct 216 ms 30940 KB Output is correct
34 Correct 276 ms 31572 KB Output is correct
35 Correct 220 ms 31700 KB Output is correct
36 Correct 129 ms 25092 KB Output is correct
37 Correct 274 ms 34776 KB Output is correct
38 Correct 290 ms 34048 KB Output is correct
39 Correct 300 ms 34844 KB Output is correct
40 Correct 170 ms 29692 KB Output is correct
41 Correct 189 ms 29664 KB Output is correct
42 Correct 107 ms 25348 KB Output is correct
43 Correct 329 ms 42452 KB Output is correct
44 Correct 355 ms 42724 KB Output is correct
45 Correct 320 ms 42196 KB Output is correct
46 Correct 335 ms 41204 KB Output is correct
47 Correct 284 ms 41220 KB Output is correct
48 Correct 133 ms 25048 KB Output is correct
49 Correct 318 ms 40840 KB Output is correct
50 Correct 315 ms 40920 KB Output is correct
51 Correct 331 ms 40916 KB Output is correct
52 Correct 266 ms 40152 KB Output is correct
53 Correct 215 ms 33156 KB Output is correct