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Submission #862174

# Submission time Handle Problem Language Result Execution time Memory
862174 2023-10-17T15:53:28 Z prohacker Inspections (NOI23_inspections) C++14
100 / 100
 344 ms 33808 KB 
#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define FOR(i,a,b) for(int i = (a) ; i <= (b) ; i++)
#define FORE(i,a,b) for(int i = (a) ; i >= (b) ; i--)
#define par pair<int , int>
#define ll long long
#define int long long

using namespace std;

const int N = 2e5+10;
const int INF = INT_MAX;
const int mod = 1e9+7;

int n,sum[N],m,Q;
pair<int,int> q[N],a[N];
set<pair<int,int>> s;
int ans[N],kq[N];
vector<pair<int,int>> pos;

int get_sum(int l, int r) {
    return sum[r] - sum[l-1];
}

int Find(int x) {
    int l = 1;
    int r = Q;
    int res = r+1;
    while(l <= r) {
        int mid = l + r >> 1;
        if(q[mid].first >= x) {
            res = mid;
            r = mid-1;
        }
        else {
            l = mid+1;
        }
    }
    return res;
}

void update(int i, int val) {
    if(i == 0) {
        return;
    }
    kq[0] += val;
    kq[i+1] -= val;
}

main()
{
    if (fopen("inspections.inp", "r")) {
        freopen("inspections.inp", "r", stdin);
        freopen("inspections.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m >> Q;
    for(int i = 1 ; i <= m ; i++) {
        cin >> a[i].first >> a[i].second;
        sum[i] = sum[i-1] + (a[i].second-a[i].first+1);
    }
    for(int i = 1 ; i <= Q ; i++) {
        cin >> q[i].first;
        q[i].second = i;
    }
    sort(q+1,q+Q+1);
    s.insert({0,0});
    s.insert({n+1,0});
    for(int i = 1 ; i <= m ; i++) {
        int l = a[i].first;
        int r = a[i].second;
        int L = l;
        auto u = s.upper_bound({l,INF});
        u--;
        auto v = s.upper_bound({r,INF});
        if(v == s.end()) {
            v--;
        }
        pos.clear();
        for(auto it = u ; it != v ; it++) {
            int id = ((*it).second);
            pos.push_back({(*it).first,(*it).second});
            auto hihi = it;
            hihi++;
            if(id != 0) {
                int val = get_sum(id,i-1)-(l-a[id].first)+(l-L);
                int x = Find(val);
                int R = min(r,((*hihi).first-1));
                update(x-1,R-l+1);
            }
            l = ((*hihi).first);
        }
        pos.push_back({(*v).first,(*v).second});
        int len = pos.size()-1;
        for(int p = 1 ; p < len ; p++) {
            s.erase({pos[p].first,pos[p].second});
        }
        s.erase(u);
        if(r+1 < pos[len].first) {
            s.insert({r+1,pos[len-1].second});
        }
        if(pos[0].first < L) {
            s.insert({pos[0].first,pos[0].second});
        }
        s.insert({L,i});
    }
    for(int i = 1 ; i <= Q ; i++) {
        kq[i] += kq[i-1];
        ans[q[i].second] = kq[i];
    }
    for(int i = 1 ; i <= Q ; i++) {
        cout << ans[i] << " ";
    }
    return 0;
}

Compilation message

Main.cpp: In function 'long long int Find(long long int)':
Main.cpp:32:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |         int mid = l + r >> 1;
      |                   ~~^~~
Main.cpp: At global scope:
Main.cpp:52:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   52 | main()
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:55:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |         freopen("inspections.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |         freopen("inspections.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8664 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8664 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct
13 Correct 49 ms 12628 KB Output is correct
14 Correct 38 ms 12624 KB Output is correct
15 Correct 40 ms 12704 KB Output is correct
16 Correct 40 ms 13140 KB Output is correct
17 Correct 40 ms 12632 KB Output is correct
18 Correct 40 ms 12628 KB Output is correct
19 Correct 44 ms 13436 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 8664 KB Output is correct
3 Correct 40 ms 12628 KB Output is correct
4 Correct 53 ms 13332 KB Output is correct
5 Correct 130 ms 16208 KB Output is correct
6 Correct 94 ms 15948 KB Output is correct
7 Correct 89 ms 15380 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8664 KB Output is correct

Subtask #4
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8664 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct
13 Correct 49 ms 12628 KB Output is correct
14 Correct 38 ms 12624 KB Output is correct
15 Correct 40 ms 12704 KB Output is correct
16 Correct 40 ms 13140 KB Output is correct
17 Correct 40 ms 12632 KB Output is correct
18 Correct 40 ms 12628 KB Output is correct
19 Correct 44 ms 13436 KB Output is correct
20 Correct 42 ms 13904 KB Output is correct
21 Correct 39 ms 13140 KB Output is correct
22 Correct 41 ms 13908 KB Output is correct
23 Correct 38 ms 13140 KB Output is correct
24 Correct 39 ms 12856 KB Output is correct
25 Correct 46 ms 13396 KB Output is correct
26 Correct 41 ms 13912 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8664 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct
13 Correct 49 ms 12628 KB Output is correct
14 Correct 38 ms 12624 KB Output is correct
15 Correct 40 ms 12704 KB Output is correct
16 Correct 40 ms 13140 KB Output is correct
17 Correct 40 ms 12632 KB Output is correct
18 Correct 40 ms 12628 KB Output is correct
19 Correct 44 ms 13436 KB Output is correct
20 Correct 1 ms 8536 KB Output is correct
21 Correct 1 ms 8664 KB Output is correct
22 Correct 40 ms 12628 KB Output is correct
23 Correct 53 ms 13332 KB Output is correct
24 Correct 130 ms 16208 KB Output is correct
25 Correct 94 ms 15948 KB Output is correct
26 Correct 89 ms 15380 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8664 KB Output is correct
29 Correct 42 ms 13904 KB Output is correct
30 Correct 39 ms 13140 KB Output is correct
31 Correct 41 ms 13908 KB Output is correct
32 Correct 38 ms 13140 KB Output is correct
33 Correct 39 ms 12856 KB Output is correct
34 Correct 46 ms 13396 KB Output is correct
35 Correct 41 ms 13912 KB Output is correct
36 Correct 222 ms 16900 KB Output is correct
37 Correct 208 ms 17004 KB Output is correct
38 Correct 154 ms 16788 KB Output is correct
39 Correct 131 ms 16404 KB Output is correct
40 Correct 187 ms 16720 KB Output is correct
41 Correct 230 ms 23320 KB Output is correct
42 Correct 221 ms 24460 KB Output is correct
43 Correct 260 ms 33808 KB Output is correct
44 Correct 242 ms 32956 KB Output is correct
45 Correct 230 ms 16212 KB Output is correct
46 Correct 344 ms 18260 KB Output is correct
47 Correct 246 ms 18516 KB Output is correct
48 Correct 188 ms 17352 KB Output is correct