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Submission #1086017

# Submission time Handle Problem Language Result Execution time Memory
1086017 2024-09-09T09:56:48 Z peacebringer1667 Strange Device (APIO19_strange_device) C++17
100 / 100
 391 ms 69992 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});
		//L..R
	}
}

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:57:21: 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]
   57 |  for (int i = 1 ; i < lst.size() ; i++){
      |                   ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 3 ms 1372 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1372 KB Output is correct
17 Correct 32 ms 7720 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 209 ms 57796 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 289 ms 69560 KB Output is correct
3 Correct 295 ms 69900 KB Output is correct
4 Correct 284 ms 69572 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 289 ms 69560 KB Output is correct
3 Correct 295 ms 69900 KB Output is correct
4 Correct 284 ms 69572 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 316 ms 69564 KB Output is correct
7 Correct 285 ms 69472 KB Output is correct
8 Correct 287 ms 69720 KB Output is correct
9 Correct 333 ms 69828 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 289 ms 69560 KB Output is correct
3 Correct 295 ms 69900 KB Output is correct
4 Correct 284 ms 69572 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 28 ms 7884 KB Output is correct
7 Correct 30 ms 7896 KB Output is correct
8 Correct 28 ms 7808 KB Output is correct
9 Correct 29 ms 7888 KB Output is correct
10 Correct 28 ms 7884 KB Output is correct
11 Correct 29 ms 7732 KB Output is correct
12 Correct 28 ms 7756 KB Output is correct
13 Correct 31 ms 7800 KB Output is correct
14 Correct 28 ms 7892 KB Output is correct
15 Correct 31 ms 7888 KB Output is correct
16 Correct 30 ms 7888 KB Output is correct
17 Correct 29 ms 7924 KB Output is correct
18 Correct 288 ms 69992 KB Output is correct
19 Correct 292 ms 69568 KB Output is correct
20 Correct 332 ms 69732 KB Output is correct
21 Correct 36 ms 7736 KB Output is correct
22 Correct 27 ms 7884 KB Output is correct
23 Correct 84 ms 26504 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 31 ms 7888 KB Output is correct
3 Correct 31 ms 7884 KB Output is correct
4 Correct 334 ms 69580 KB Output is correct
5 Correct 31 ms 7824 KB Output is correct
6 Correct 31 ms 7892 KB Output is correct
7 Correct 32 ms 7920 KB Output is correct
8 Correct 32 ms 7944 KB Output is correct
9 Correct 37 ms 7876 KB Output is correct
10 Correct 32 ms 7832 KB Output is correct
11 Correct 33 ms 7700 KB Output is correct
12 Correct 29 ms 7844 KB Output is correct
13 Correct 34 ms 7720 KB Output is correct
14 Correct 371 ms 69700 KB Output is correct
15 Correct 30 ms 7884 KB Output is correct
16 Correct 310 ms 69680 KB Output is correct
17 Correct 303 ms 69600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 3 ms 1372 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1372 KB Output is correct
17 Correct 32 ms 7720 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 209 ms 57796 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 289 ms 69560 KB Output is correct
31 Correct 295 ms 69900 KB Output is correct
32 Correct 284 ms 69572 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 316 ms 69564 KB Output is correct
35 Correct 285 ms 69472 KB Output is correct
36 Correct 287 ms 69720 KB Output is correct
37 Correct 333 ms 69828 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 28 ms 7884 KB Output is correct
40 Correct 30 ms 7896 KB Output is correct
41 Correct 28 ms 7808 KB Output is correct
42 Correct 29 ms 7888 KB Output is correct
43 Correct 28 ms 7884 KB Output is correct
44 Correct 29 ms 7732 KB Output is correct
45 Correct 28 ms 7756 KB Output is correct
46 Correct 31 ms 7800 KB Output is correct
47 Correct 28 ms 7892 KB Output is correct
48 Correct 31 ms 7888 KB Output is correct
49 Correct 30 ms 7888 KB Output is correct
50 Correct 29 ms 7924 KB Output is correct
51 Correct 288 ms 69992 KB Output is correct
52 Correct 292 ms 69568 KB Output is correct
53 Correct 332 ms 69732 KB Output is correct
54 Correct 36 ms 7736 KB Output is correct
55 Correct 27 ms 7884 KB Output is correct
56 Correct 84 ms 26504 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 31 ms 7888 KB Output is correct
59 Correct 31 ms 7884 KB Output is correct
60 Correct 334 ms 69580 KB Output is correct
61 Correct 31 ms 7824 KB Output is correct
62 Correct 31 ms 7892 KB Output is correct
63 Correct 32 ms 7920 KB Output is correct
64 Correct 32 ms 7944 KB Output is correct
65 Correct 37 ms 7876 KB Output is correct
66 Correct 32 ms 7832 KB Output is correct
67 Correct 33 ms 7700 KB Output is correct
68 Correct 29 ms 7844 KB Output is correct
69 Correct 34 ms 7720 KB Output is correct
70 Correct 371 ms 69700 KB Output is correct
71 Correct 30 ms 7884 KB Output is correct
72 Correct 310 ms 69680 KB Output is correct
73 Correct 303 ms 69600 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 464 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 4 ms 1372 KB Output is correct
80 Correct 355 ms 69672 KB Output is correct
81 Correct 366 ms 69696 KB Output is correct
82 Correct 328 ms 69776 KB Output is correct
83 Correct 324 ms 69904 KB Output is correct
84 Correct 391 ms 69716 KB Output is correct
85 Correct 389 ms 69820 KB Output is correct
86 Correct 124 ms 26564 KB Output is correct
87 Correct 0 ms 348 KB Output is correct