Submission #481892

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
481892	2021-10-22T07:27:12 Z	radal	Strange Device (APIO19_strange_device)	C++14	100 / 100	1157 ms	100228 KB

strange_device

#include <bits/stdc++.h>
#pragma GCC target ("avx,avx2,fma")
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")
#define X first
#define Y second
#define debug(x) cerr << #x << ": " << x << endl;
#define endl '\n'
#define pb push_back
#define rep(i,l,r) for (int i=l; i<r; i++)
#define repr(i,r,l) for (int i=r; i>=l; i--)
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
const long long int N=5e2+20,mod = 1e9+7,inf=1e18;
inline int mkay(int a,int b){
    if (a+b >= mod) return a+b-mod;
    return a+b;
}
ll gcd(ll a,ll b){
    if (!b) return a;
    if (b < a) swap(a,b);
    return gcd(a,b%a);
}
int main(){
    ios :: sync_with_stdio(0); cin.tie(0);
    int n;
    ll a,b,z;
    cin >> n >> a >> b;
    a /= gcd(a,b+1);
    debug(gcd(4,6));
    if (b >= (inf+a-1)/a) z = inf+1;
    else z = a*b;
    set<pll> st;
    rep(i,0,n){
        ll l,r;
        cin >> l >> r;
        if (r-l+1 >= z){
            cout << z;
            return 0;
        }
        if (r%z < l%z){
            auto it = st.upper_bound({l%z,0});
            while(it != st.end()){
                st.erase(it);
                it = st.upper_bound({l%z,0});
            }
            st.insert({l%z,z});
            st.insert({0,r%z+1});
        }
        else{
            st.insert({l%z,r%z+1});
        }
    }
    pll p = {1,-1};
    ll ans = 0;
    for(pll q : st){
        if (q.X >= p.X && q.Y <= p.Y)
            continue;
        if (q.X <= p.Y){
            ans += q.Y-p.Y;
            p.Y = q.Y;
            continue;
        }
        p = q;
        ans += p.Y-p.X;
    }
    cout << ans;
    return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	204 KB	Output is correct
2	Correct	143 ms	1228 KB	Output is correct
3	Correct	10 ms	1220 KB	Output is correct
4	Correct	3 ms	312 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	3 ms	312 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	312 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	3 ms	204 KB	Output is correct
14	Correct	3 ms	204 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	10 ms	1200 KB	Output is correct
17	Correct	83 ms	10280 KB	Output is correct
18	Correct	2 ms	204 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	204 KB	Output is correct
2	Correct	3 ms	204 KB	Output is correct
3	Correct	1 ms	316 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	316 KB	Output is correct
2	Correct	13 ms	324 KB	Output is correct
3	Correct	3 ms	332 KB	Output is correct
4	Correct	2 ms	332 KB	Output is correct
5	Correct	309 ms	25508 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	732 ms	100112 KB	Output is correct
3	Correct	737 ms	100000 KB	Output is correct
4	Correct	774 ms	100120 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	732 ms	100112 KB	Output is correct
3	Correct	737 ms	100000 KB	Output is correct
4	Correct	774 ms	100120 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	726 ms	100028 KB	Output is correct
7	Correct	687 ms	100112 KB	Output is correct
8	Correct	678 ms	100096 KB	Output is correct
9	Correct	739 ms	100072 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	732 ms	100112 KB	Output is correct
3	Correct	737 ms	100000 KB	Output is correct
4	Correct	774 ms	100120 KB	Output is correct
5	Correct	2 ms	204 KB	Output is correct
6	Correct	59 ms	10228 KB	Output is correct
7	Correct	63 ms	10160 KB	Output is correct
8	Correct	84 ms	10308 KB	Output is correct
9	Correct	67 ms	10224 KB	Output is correct
10	Correct	57 ms	10192 KB	Output is correct
11	Correct	63 ms	10156 KB	Output is correct
12	Correct	78 ms	10276 KB	Output is correct
13	Correct	74 ms	10432 KB	Output is correct
14	Correct	86 ms	10224 KB	Output is correct
15	Correct	68 ms	10192 KB	Output is correct
16	Correct	65 ms	10180 KB	Output is correct
17	Correct	63 ms	10312 KB	Output is correct
18	Correct	691 ms	100120 KB	Output is correct
19	Correct	702 ms	100068 KB	Output is correct
20	Correct	1157 ms	100036 KB	Output is correct
21	Correct	67 ms	10180 KB	Output is correct
22	Correct	61 ms	10292 KB	Output is correct
23	Correct	123 ms	12844 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	72 ms	10204 KB	Output is correct
3	Correct	66 ms	10276 KB	Output is correct
4	Correct	761 ms	100080 KB	Output is correct
5	Correct	64 ms	10180 KB	Output is correct
6	Correct	71 ms	10360 KB	Output is correct
7	Correct	79 ms	10220 KB	Output is correct
8	Correct	74 ms	10160 KB	Output is correct
9	Correct	72 ms	10160 KB	Output is correct
10	Correct	68 ms	10252 KB	Output is correct
11	Correct	61 ms	10204 KB	Output is correct
12	Correct	68 ms	10320 KB	Output is correct
13	Correct	70 ms	10180 KB	Output is correct
14	Correct	731 ms	100084 KB	Output is correct
15	Correct	76 ms	10308 KB	Output is correct
16	Correct	703 ms	100228 KB	Output is correct
17	Correct	693 ms	100108 KB	Output is correct
18	Correct	2 ms	204 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	204 KB	Output is correct
2	Correct	143 ms	1228 KB	Output is correct
3	Correct	10 ms	1220 KB	Output is correct
4	Correct	3 ms	312 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	3 ms	312 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	312 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	3 ms	204 KB	Output is correct
14	Correct	3 ms	204 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	10 ms	1200 KB	Output is correct
17	Correct	83 ms	10280 KB	Output is correct
18	Correct	2 ms	204 KB	Output is correct
19	Correct	2 ms	204 KB	Output is correct
20	Correct	3 ms	204 KB	Output is correct
21	Correct	1 ms	316 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	2 ms	316 KB	Output is correct
25	Correct	13 ms	324 KB	Output is correct
26	Correct	3 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	309 ms	25508 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	732 ms	100112 KB	Output is correct
31	Correct	737 ms	100000 KB	Output is correct
32	Correct	774 ms	100120 KB	Output is correct
33	Correct	1 ms	204 KB	Output is correct
34	Correct	726 ms	100028 KB	Output is correct
35	Correct	687 ms	100112 KB	Output is correct
36	Correct	678 ms	100096 KB	Output is correct
37	Correct	739 ms	100072 KB	Output is correct
38	Correct	2 ms	204 KB	Output is correct
39	Correct	59 ms	10228 KB	Output is correct
40	Correct	63 ms	10160 KB	Output is correct
41	Correct	84 ms	10308 KB	Output is correct
42	Correct	67 ms	10224 KB	Output is correct
43	Correct	57 ms	10192 KB	Output is correct
44	Correct	63 ms	10156 KB	Output is correct
45	Correct	78 ms	10276 KB	Output is correct
46	Correct	74 ms	10432 KB	Output is correct
47	Correct	86 ms	10224 KB	Output is correct
48	Correct	68 ms	10192 KB	Output is correct
49	Correct	65 ms	10180 KB	Output is correct
50	Correct	63 ms	10312 KB	Output is correct
51	Correct	691 ms	100120 KB	Output is correct
52	Correct	702 ms	100068 KB	Output is correct
53	Correct	1157 ms	100036 KB	Output is correct
54	Correct	67 ms	10180 KB	Output is correct
55	Correct	61 ms	10292 KB	Output is correct
56	Correct	123 ms	12844 KB	Output is correct
57	Correct	1 ms	204 KB	Output is correct
58	Correct	72 ms	10204 KB	Output is correct
59	Correct	66 ms	10276 KB	Output is correct
60	Correct	761 ms	100080 KB	Output is correct
61	Correct	64 ms	10180 KB	Output is correct
62	Correct	71 ms	10360 KB	Output is correct
63	Correct	79 ms	10220 KB	Output is correct
64	Correct	74 ms	10160 KB	Output is correct
65	Correct	72 ms	10160 KB	Output is correct
66	Correct	68 ms	10252 KB	Output is correct
67	Correct	61 ms	10204 KB	Output is correct
68	Correct	68 ms	10320 KB	Output is correct
69	Correct	70 ms	10180 KB	Output is correct
70	Correct	731 ms	100084 KB	Output is correct
71	Correct	76 ms	10308 KB	Output is correct
72	Correct	703 ms	100228 KB	Output is correct
73	Correct	693 ms	100108 KB	Output is correct
74	Correct	2 ms	204 KB	Output is correct
75	Correct	2 ms	308 KB	Output is correct
76	Correct	1 ms	204 KB	Output is correct
77	Correct	2 ms	204 KB	Output is correct
78	Correct	1 ms	204 KB	Output is correct
79	Correct	7 ms	1228 KB	Output is correct
80	Correct	706 ms	99960 KB	Output is correct
81	Correct	756 ms	99960 KB	Output is correct
82	Correct	752 ms	99984 KB	Output is correct
83	Correct	727 ms	99660 KB	Output is correct
84	Correct	880 ms	99300 KB	Output is correct
85	Correct	805 ms	99308 KB	Output is correct
86	Correct	147 ms	12772 KB	Output is correct
87	Correct	2 ms	204 KB	Output is correct

Submission #481892

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