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Submission #1100631

# Submission time Handle Problem Language Result Execution time Memory
1100631 2024-10-14T10:55:35 Z vjudge1 Strange Device (APIO19_strange_device) C++17
100 / 100
 330 ms 34556 KB 
#include<bits/stdc++.h>
#define ll long long
#define ldb long double
#define fi first
#define se second
#define sza(a) (int)a.size()
#define pir pair<int,int>
#define pirll pair<ll,ll>
using namespace std;
const ll inf = 1e18 + 1e17;
const int maxn = 1e6 + 5;
 
ll l[maxn],r[maxn];
vector <pirll> lst;
 
void input(int n){
	for (int i = 1 ; i <= n ; i++) cin >> l[i] >> r[i];
}
ll get_val(ll A,ll B){
	A /= __gcd(A,B + 1);
	if (A > inf/B) return inf;
	return A * B;
}
 
 
void gen_pir(int n,ll T){
	for (int i = 1 ; i <= n ; i++){
		ll L = l[i],R = r[i];
		
		if (L/T == R/T){
		  lst.push_back({L % T,R % T});
	      continue;
		}
		
		if (R/T > L/T + 1){
			lst.push_back({0,T - 1});
			return;
		}
		
	    ll NL = L + (T - L % T) - 1;
	    if (NL >= L)
	      lst.push_back({L % T,NL % T});
	    
	    ll NR = R - R % T;
	    lst.push_back({NR % T,R % T});
	}
}
 
ll solve(int n,ll T){
	gen_pir(n,T);
	
	sort(lst.begin(),lst.end());
	ll L = lst[0].fi,R = lst[0].se;
	ll res = lst[0].se - lst[0].fi + 1,cur = R;
	
	for (int i = 1 ; i < lst.size() ; i++){
		L = lst[i].fi;R = lst[i].se;
		
		if (R > cur) res += R - max(cur + 1,L) + 1;
		cur = max(cur,R);
	}
	
	return res;
}
 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);cout.tie(0);
 
	int n;ll A,B;
	cin >> n >> A >> B;
	input(n);
	
	ll T = get_val(A,B);
 	
 	cout << solve(n,T);
	
 
	return 0;
}

Compilation message

strange_device.cpp: In function 'long long int solve(int, long long int)':
strange_device.cpp:56:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |  for (int i = 1 ; i < lst.size() ; i++){
      |                   ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 4 ms 2896 KB Output is correct
3 Correct 4 ms 2896 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2640 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2556 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 3 ms 2896 KB Output is correct
17 Correct 32 ms 10184 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2552 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 198 ms 34488 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 274 ms 34488 KB Output is correct
3 Correct 256 ms 34552 KB Output is correct
4 Correct 273 ms 34544 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 274 ms 34488 KB Output is correct
3 Correct 256 ms 34552 KB Output is correct
4 Correct 273 ms 34544 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 258 ms 34544 KB Output is correct
7 Correct 267 ms 34496 KB Output is correct
8 Correct 275 ms 34488 KB Output is correct
9 Correct 303 ms 34488 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 274 ms 34488 KB Output is correct
3 Correct 256 ms 34552 KB Output is correct
4 Correct 273 ms 34544 KB Output is correct
5 Correct 1 ms 2552 KB Output is correct
6 Correct 29 ms 9932 KB Output is correct
7 Correct 32 ms 9932 KB Output is correct
8 Correct 28 ms 10008 KB Output is correct
9 Correct 31 ms 9932 KB Output is correct
10 Correct 29 ms 9988 KB Output is correct
11 Correct 31 ms 9924 KB Output is correct
12 Correct 31 ms 9932 KB Output is correct
13 Correct 32 ms 9944 KB Output is correct
14 Correct 28 ms 9932 KB Output is correct
15 Correct 33 ms 9932 KB Output is correct
16 Correct 33 ms 9932 KB Output is correct
17 Correct 41 ms 9984 KB Output is correct
18 Correct 286 ms 34488 KB Output is correct
19 Correct 265 ms 34464 KB Output is correct
20 Correct 313 ms 34488 KB Output is correct
21 Correct 32 ms 9932 KB Output is correct
22 Correct 29 ms 9932 KB Output is correct
23 Correct 83 ms 21180 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 31 ms 9932 KB Output is correct
3 Correct 30 ms 9924 KB Output is correct
4 Correct 325 ms 34552 KB Output is correct
5 Correct 32 ms 9924 KB Output is correct
6 Correct 31 ms 9932 KB Output is correct
7 Correct 31 ms 9932 KB Output is correct
8 Correct 32 ms 9924 KB Output is correct
9 Correct 31 ms 9924 KB Output is correct
10 Correct 31 ms 9932 KB Output is correct
11 Correct 35 ms 10004 KB Output is correct
12 Correct 27 ms 9932 KB Output is correct
13 Correct 32 ms 9932 KB Output is correct
14 Correct 311 ms 34488 KB Output is correct
15 Correct 31 ms 9932 KB Output is correct
16 Correct 290 ms 34488 KB Output is correct
17 Correct 273 ms 34544 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 4 ms 2896 KB Output is correct
3 Correct 4 ms 2896 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2640 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2556 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 3 ms 2896 KB Output is correct
17 Correct 32 ms 10184 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2552 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 1 ms 2384 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 1 ms 2384 KB Output is correct
28 Correct 198 ms 34488 KB Output is correct
29 Correct 1 ms 2384 KB Output is correct
30 Correct 274 ms 34488 KB Output is correct
31 Correct 256 ms 34552 KB Output is correct
32 Correct 273 ms 34544 KB Output is correct
33 Correct 1 ms 2384 KB Output is correct
34 Correct 258 ms 34544 KB Output is correct
35 Correct 267 ms 34496 KB Output is correct
36 Correct 275 ms 34488 KB Output is correct
37 Correct 303 ms 34488 KB Output is correct
38 Correct 1 ms 2552 KB Output is correct
39 Correct 29 ms 9932 KB Output is correct
40 Correct 32 ms 9932 KB Output is correct
41 Correct 28 ms 10008 KB Output is correct
42 Correct 31 ms 9932 KB Output is correct
43 Correct 29 ms 9988 KB Output is correct
44 Correct 31 ms 9924 KB Output is correct
45 Correct 31 ms 9932 KB Output is correct
46 Correct 32 ms 9944 KB Output is correct
47 Correct 28 ms 9932 KB Output is correct
48 Correct 33 ms 9932 KB Output is correct
49 Correct 33 ms 9932 KB Output is correct
50 Correct 41 ms 9984 KB Output is correct
51 Correct 286 ms 34488 KB Output is correct
52 Correct 265 ms 34464 KB Output is correct
53 Correct 313 ms 34488 KB Output is correct
54 Correct 32 ms 9932 KB Output is correct
55 Correct 29 ms 9932 KB Output is correct
56 Correct 83 ms 21180 KB Output is correct
57 Correct 1 ms 2384 KB Output is correct
58 Correct 31 ms 9932 KB Output is correct
59 Correct 30 ms 9924 KB Output is correct
60 Correct 325 ms 34552 KB Output is correct
61 Correct 32 ms 9924 KB Output is correct
62 Correct 31 ms 9932 KB Output is correct
63 Correct 31 ms 9932 KB Output is correct
64 Correct 32 ms 9924 KB Output is correct
65 Correct 31 ms 9924 KB Output is correct
66 Correct 31 ms 9932 KB Output is correct
67 Correct 35 ms 10004 KB Output is correct
68 Correct 27 ms 9932 KB Output is correct
69 Correct 32 ms 9932 KB Output is correct
70 Correct 311 ms 34488 KB Output is correct
71 Correct 31 ms 9932 KB Output is correct
72 Correct 290 ms 34488 KB Output is correct
73 Correct 273 ms 34544 KB Output is correct
74 Correct 1 ms 2384 KB Output is correct
75 Correct 1 ms 2384 KB Output is correct
76 Correct 1 ms 2384 KB Output is correct
77 Correct 1 ms 2384 KB Output is correct
78 Correct 1 ms 2384 KB Output is correct
79 Correct 3 ms 2896 KB Output is correct
80 Correct 330 ms 34552 KB Output is correct
81 Correct 294 ms 34488 KB Output is correct
82 Correct 289 ms 34556 KB Output is correct
83 Correct 301 ms 34488 KB Output is correct
84 Correct 302 ms 34488 KB Output is correct
85 Correct 286 ms 34548 KB Output is correct
86 Correct 78 ms 21180 KB Output is correct
87 Correct 1 ms 2384 KB Output is correct