oj.uz

Submission #1045459

# Submission time Handle Problem Language Result Execution time Memory
1045459 2024-08-06T01:20:28 Z Darren0724 Portal (BOI24_portal) C++17
65 / 100
 1586 ms 2688 KB 
#pragma GCC optimize("Ofast","O3","unroll-loops")
#pragma GCC target("avx","avx2")
#include<bits/stdc++.h>
using namespace std;
#define x first
#define y second
#define ll long long
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define rz resize
#define pb emplace_back
#define LCBorz ios_base::sync_with_stdio(false);cin.tie(0);
#define endl '\n'
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
const int INF=2e9;
const int mod=1e9+7;
const int N=200005;
const int K=20;
const int C=2000005;
 
ll gcd(ll a,ll b){
    return abs(__gcd(a,b));
}
 
 
int32_t main(){
    LCBorz;
    int n;cin>>n;
    if(n<=2){
        cout<<-1<<endl;
        return 0;
    }
    vector<pair<int,int>> v(n),v1(n);
    for(int i=0;i<n;i++){
        int a,b;cin>>a>>b;
        v[i]={a,b};
    }
    sort(all(v));
    for(int i=1;i<n;i++){
        v[i].x-=v[0].x;
        v[i].y-=v[0].y;
    }
    ll ans=-1;
    auto solve=[&](int i,int j)->void {
        int r1=v[j].y/gcd(v[i].y,v[j].y);
        ll t=1ll*v[i].y*r1;
        int t1=t/v[j].y;
        ll x1=abs(1ll*v[i].x*r1-1ll*v[j].x*t1);
        if(x1!=0)ans=(ans==-1?x1:gcd(ans,x1));
    };
    vector<int> t;
    for(int i=1;i<n;i++){
        if(v[i].y==0){
            ans=(ans==-1?v[i].x:gcd(v[i].x,ans));
            continue;
        }
        t.push_back(i);
    }
    int sz=t.size();
    if(sz==0){
        cout<<-1<<endl;
        return 0;
    }
    for(int i=0;i<25000000;i++){
        int g1=rnd()%sz;
        int g2=rnd()%sz;
        solve(t[g1],t[g2]);
    }
    int g1=-1;
    for(int i=1;i<n;i++){
        if(v[i].y==0)continue;
        g1=(g1==-1?abs(v[i].y):gcd(g1,v[i].y));
    }
    //cout<<ans<<' '<<g1<<endl;
    cout<<(ans==-1?-1:ans*g1)<<endl;
    return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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
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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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
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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 508 ms 344 KB Output is correct
20 Correct 818 ms 348 KB Output is correct
21 Correct 790 ms 348 KB Output is correct
22 Correct 658 ms 428 KB Output is correct
23 Correct 895 ms 432 KB Output is correct
24 Correct 669 ms 432 KB Output is correct
25 Correct 591 ms 348 KB Output is correct
26 Correct 627 ms 344 KB Output is correct
27 Correct 640 ms 348 KB Output is correct
28 Correct 711 ms 344 KB Output is correct
29 Correct 779 ms 432 KB Output is correct
30 Correct 806 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 721 ms 348 KB Output is correct
33 Correct 742 ms 348 KB Output is correct
34 Correct 671 ms 348 KB Output is correct
35 Correct 704 ms 436 KB Output is correct
36 Correct 769 ms 348 KB Output is correct
37 Correct 638 ms 432 KB Output is correct
38 Correct 825 ms 436 KB Output is correct
39 Correct 744 ms 436 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1149 ms 2680 KB Output is correct
3 Correct 1162 ms 2484 KB Output is correct
4 Correct 1177 ms 2528 KB Output is correct
5 Correct 1179 ms 2528 KB Output is correct
6 Correct 1291 ms 2524 KB Output is correct
7 Correct 16 ms 1884 KB Output is correct
8 Correct 16 ms 2044 KB Output is correct
9 Correct 16 ms 2040 KB Output is correct
10 Correct 1429 ms 2528 KB Output is correct
11 Correct 493 ms 2396 KB Output is correct
12 Correct 495 ms 2392 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1524 ms 2680 KB Output is correct
15 Correct 1445 ms 2528 KB Output is correct
16 Correct 1251 ms 2684 KB Output is correct
17 Correct 1424 ms 2528 KB Output is correct
18 Correct 1189 ms 2528 KB Output is correct
19 Correct 1200 ms 2680 KB Output is correct
20 Correct 1186 ms 2528 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 469 ms 428 KB Output is correct
2 Correct 497 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 662 ms 348 KB Output is correct
5 Correct 765 ms 432 KB Output is correct
6 Correct 628 ms 344 KB Output is correct
7 Correct 816 ms 440 KB Output is correct
8 Correct 743 ms 348 KB Output is correct
9 Correct 748 ms 432 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 718 ms 432 KB Output is correct
12 Correct 720 ms 432 KB Output is correct
13 Correct 751 ms 348 KB Output is correct
14 Correct 253 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 723 ms 436 KB Output is correct
17 Correct 743 ms 348 KB Output is correct
18 Correct 786 ms 440 KB Output is correct
19 Correct 845 ms 436 KB Output is correct
20 Correct 803 ms 348 KB Output is correct
21 Correct 675 ms 444 KB Output is correct
22 Correct 748 ms 348 KB Output is correct
23 Correct 786 ms 344 KB Output is correct
24 Correct 846 ms 348 KB Output is correct
25 Correct 749 ms 348 KB Output is correct
26 Correct 735 ms 436 KB Output is correct
27 Correct 740 ms 440 KB Output is correct
28 Correct 758 ms 436 KB Output is correct
29 Correct 777 ms 432 KB Output is correct
30 Correct 798 ms 348 KB Output is correct
31 Correct 798 ms 592 KB Output is correct
32 Correct 824 ms 436 KB Output is correct
33 Correct 770 ms 440 KB Output is correct
34 Correct 747 ms 432 KB Output is correct
35 Correct 701 ms 436 KB Output is correct
36 Correct 767 ms 344 KB Output is correct
37 Correct 772 ms 436 KB Output is correct
38 Correct 652 ms 428 KB Output is correct
39 Correct 544 ms 432 KB Output is correct
40 Correct 285 ms 348 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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
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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 508 ms 344 KB Output is correct
20 Correct 818 ms 348 KB Output is correct
21 Correct 790 ms 348 KB Output is correct
22 Correct 658 ms 428 KB Output is correct
23 Correct 895 ms 432 KB Output is correct
24 Correct 669 ms 432 KB Output is correct
25 Correct 591 ms 348 KB Output is correct
26 Correct 627 ms 344 KB Output is correct
27 Correct 640 ms 348 KB Output is correct
28 Correct 711 ms 344 KB Output is correct
29 Correct 779 ms 432 KB Output is correct
30 Correct 806 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 721 ms 348 KB Output is correct
33 Correct 742 ms 348 KB Output is correct
34 Correct 671 ms 348 KB Output is correct
35 Correct 704 ms 436 KB Output is correct
36 Correct 769 ms 348 KB Output is correct
37 Correct 638 ms 432 KB Output is correct
38 Correct 825 ms 436 KB Output is correct
39 Correct 744 ms 436 KB Output is correct
40 Correct 469 ms 428 KB Output is correct
41 Correct 497 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 662 ms 348 KB Output is correct
44 Correct 765 ms 432 KB Output is correct
45 Correct 628 ms 344 KB Output is correct
46 Correct 816 ms 440 KB Output is correct
47 Correct 743 ms 348 KB Output is correct
48 Correct 748 ms 432 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 718 ms 432 KB Output is correct
51 Correct 720 ms 432 KB Output is correct
52 Correct 751 ms 348 KB Output is correct
53 Correct 253 ms 348 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 723 ms 436 KB Output is correct
56 Correct 743 ms 348 KB Output is correct
57 Correct 786 ms 440 KB Output is correct
58 Correct 845 ms 436 KB Output is correct
59 Correct 803 ms 348 KB Output is correct
60 Correct 675 ms 444 KB Output is correct
61 Correct 748 ms 348 KB Output is correct
62 Correct 786 ms 344 KB Output is correct
63 Correct 846 ms 348 KB Output is correct
64 Correct 749 ms 348 KB Output is correct
65 Correct 735 ms 436 KB Output is correct
66 Correct 740 ms 440 KB Output is correct
67 Correct 758 ms 436 KB Output is correct
68 Correct 777 ms 432 KB Output is correct
69 Correct 798 ms 348 KB Output is correct
70 Correct 798 ms 592 KB Output is correct
71 Correct 824 ms 436 KB Output is correct
72 Correct 770 ms 440 KB Output is correct
73 Correct 747 ms 432 KB Output is correct
74 Correct 701 ms 436 KB Output is correct
75 Correct 767 ms 344 KB Output is correct
76 Correct 772 ms 436 KB Output is correct
77 Correct 652 ms 428 KB Output is correct
78 Correct 544 ms 432 KB Output is correct
79 Correct 285 ms 348 KB Output is correct
80 Correct 1411 ms 484 KB Output is correct
81 Correct 1406 ms 488 KB Output is correct
82 Correct 990 ms 460 KB Output is correct
83 Correct 963 ms 348 KB Output is correct
84 Correct 1114 ms 460 KB Output is correct
85 Correct 957 ms 456 KB Output is correct
86 Correct 1000 ms 460 KB Output is correct
87 Correct 1322 ms 348 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 1378 ms 484 KB Output is correct
90 Correct 1451 ms 484 KB Output is correct
91 Correct 1426 ms 480 KB Output is correct
92 Correct 1460 ms 480 KB Output is correct
93 Correct 1419 ms 480 KB Output is correct
94 Correct 1352 ms 492 KB Output is correct
95 Correct 1395 ms 488 KB Output is correct
96 Correct 1248 ms 480 KB Output is correct
97 Correct 1175 ms 480 KB Output is correct
98 Correct 1335 ms 480 KB Output is correct
99 Correct 1229 ms 480 KB Output is correct
100 Correct 1301 ms 484 KB Output is correct
101 Correct 1136 ms 344 KB Output is correct
102 Correct 1214 ms 480 KB Output is correct
103 Correct 1302 ms 348 KB Output is correct
104 Correct 1209 ms 476 KB Output is correct
105 Correct 1275 ms 344 KB Output is correct
106 Correct 1132 ms 480 KB Output is correct
107 Correct 1205 ms 480 KB Output is correct
108 Correct 1193 ms 484 KB Output is correct
109 Correct 1281 ms 344 KB Output is correct
110 Correct 1274 ms 348 KB Output is correct
111 Correct 817 ms 344 KB Output is correct
112 Correct 927 ms 432 KB Output is correct
113 Correct 901 ms 344 KB Output is correct
114 Correct 1287 ms 484 KB Output is correct
115 Correct 1359 ms 484 KB Output is correct
116 Correct 1324 ms 484 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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
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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 508 ms 344 KB Output is correct
20 Correct 818 ms 348 KB Output is correct
21 Correct 790 ms 348 KB Output is correct
22 Correct 658 ms 428 KB Output is correct
23 Correct 895 ms 432 KB Output is correct
24 Correct 669 ms 432 KB Output is correct
25 Correct 591 ms 348 KB Output is correct
26 Correct 627 ms 344 KB Output is correct
27 Correct 640 ms 348 KB Output is correct
28 Correct 711 ms 344 KB Output is correct
29 Correct 779 ms 432 KB Output is correct
30 Correct 806 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 721 ms 348 KB Output is correct
33 Correct 742 ms 348 KB Output is correct
34 Correct 671 ms 348 KB Output is correct
35 Correct 704 ms 436 KB Output is correct
36 Correct 769 ms 348 KB Output is correct
37 Correct 638 ms 432 KB Output is correct
38 Correct 825 ms 436 KB Output is correct
39 Correct 744 ms 436 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1149 ms 2680 KB Output is correct
42 Correct 1162 ms 2484 KB Output is correct
43 Correct 1177 ms 2528 KB Output is correct
44 Correct 1179 ms 2528 KB Output is correct
45 Correct 1291 ms 2524 KB Output is correct
46 Correct 16 ms 1884 KB Output is correct
47 Correct 16 ms 2044 KB Output is correct
48 Correct 16 ms 2040 KB Output is correct
49 Correct 1429 ms 2528 KB Output is correct
50 Correct 493 ms 2396 KB Output is correct
51 Correct 495 ms 2392 KB Output is correct
52 Correct 0 ms 344 KB Output is correct
53 Correct 1524 ms 2680 KB Output is correct
54 Correct 1445 ms 2528 KB Output is correct
55 Correct 1251 ms 2684 KB Output is correct
56 Correct 1424 ms 2528 KB Output is correct
57 Correct 1189 ms 2528 KB Output is correct
58 Correct 1200 ms 2680 KB Output is correct
59 Correct 1186 ms 2528 KB Output is correct
60 Correct 469 ms 428 KB Output is correct
61 Correct 497 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 662 ms 348 KB Output is correct
64 Correct 765 ms 432 KB Output is correct
65 Correct 628 ms 344 KB Output is correct
66 Correct 816 ms 440 KB Output is correct
67 Correct 743 ms 348 KB Output is correct
68 Correct 748 ms 432 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 718 ms 432 KB Output is correct
71 Correct 720 ms 432 KB Output is correct
72 Correct 751 ms 348 KB Output is correct
73 Correct 253 ms 348 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 723 ms 436 KB Output is correct
76 Correct 743 ms 348 KB Output is correct
77 Correct 786 ms 440 KB Output is correct
78 Correct 845 ms 436 KB Output is correct
79 Correct 803 ms 348 KB Output is correct
80 Correct 675 ms 444 KB Output is correct
81 Correct 748 ms 348 KB Output is correct
82 Correct 786 ms 344 KB Output is correct
83 Correct 846 ms 348 KB Output is correct
84 Correct 749 ms 348 KB Output is correct
85 Correct 735 ms 436 KB Output is correct
86 Correct 740 ms 440 KB Output is correct
87 Correct 758 ms 436 KB Output is correct
88 Correct 777 ms 432 KB Output is correct
89 Correct 798 ms 348 KB Output is correct
90 Correct 798 ms 592 KB Output is correct
91 Correct 824 ms 436 KB Output is correct
92 Correct 770 ms 440 KB Output is correct
93 Correct 747 ms 432 KB Output is correct
94 Correct 701 ms 436 KB Output is correct
95 Correct 767 ms 344 KB Output is correct
96 Correct 772 ms 436 KB Output is correct
97 Correct 652 ms 428 KB Output is correct
98 Correct 544 ms 432 KB Output is correct
99 Correct 285 ms 348 KB Output is correct
100 Correct 1411 ms 484 KB Output is correct
101 Correct 1406 ms 488 KB Output is correct
102 Correct 990 ms 460 KB Output is correct
103 Correct 963 ms 348 KB Output is correct
104 Correct 1114 ms 460 KB Output is correct
105 Correct 957 ms 456 KB Output is correct
106 Correct 1000 ms 460 KB Output is correct
107 Correct 1322 ms 348 KB Output is correct
108 Correct 0 ms 348 KB Output is correct
109 Correct 1378 ms 484 KB Output is correct
110 Correct 1451 ms 484 KB Output is correct
111 Correct 1426 ms 480 KB Output is correct
112 Correct 1460 ms 480 KB Output is correct
113 Correct 1419 ms 480 KB Output is correct
114 Correct 1352 ms 492 KB Output is correct
115 Correct 1395 ms 488 KB Output is correct
116 Correct 1248 ms 480 KB Output is correct
117 Correct 1175 ms 480 KB Output is correct
118 Correct 1335 ms 480 KB Output is correct
119 Correct 1229 ms 480 KB Output is correct
120 Correct 1301 ms 484 KB Output is correct
121 Correct 1136 ms 344 KB Output is correct
122 Correct 1214 ms 480 KB Output is correct
123 Correct 1302 ms 348 KB Output is correct
124 Correct 1209 ms 476 KB Output is correct
125 Correct 1275 ms 344 KB Output is correct
126 Correct 1132 ms 480 KB Output is correct
127 Correct 1205 ms 480 KB Output is correct
128 Correct 1193 ms 484 KB Output is correct
129 Correct 1281 ms 344 KB Output is correct
130 Correct 1274 ms 348 KB Output is correct
131 Correct 817 ms 344 KB Output is correct
132 Correct 927 ms 432 KB Output is correct
133 Correct 901 ms 344 KB Output is correct
134 Correct 1287 ms 484 KB Output is correct
135 Correct 1359 ms 484 KB Output is correct
136 Correct 1324 ms 484 KB Output is correct
137 Correct 1438 ms 2524 KB Output is correct
138 Correct 1353 ms 2516 KB Output is correct
139 Correct 1469 ms 2524 KB Output is correct
140 Correct 1511 ms 2524 KB Output is correct
141 Correct 1494 ms 2528 KB Output is correct
142 Correct 1138 ms 700 KB Output is correct
143 Correct 1123 ms 700 KB Output is correct
144 Correct 1140 ms 700 KB Output is correct
145 Correct 1119 ms 700 KB Output is correct
146 Correct 1402 ms 704 KB Output is correct
147 Correct 1324 ms 712 KB Output is correct
148 Correct 0 ms 348 KB Output is correct
149 Correct 1449 ms 2664 KB Output is correct
150 Correct 1564 ms 2524 KB Output is correct
151 Correct 1375 ms 2428 KB Output is correct
152 Correct 1559 ms 2528 KB Output is correct
153 Correct 1586 ms 2528 KB Output is correct
154 Correct 1406 ms 2688 KB Output is correct
155 Correct 1488 ms 2516 KB Output is correct
156 Correct 1418 ms 2528 KB Output is correct
157 Correct 1316 ms 2548 KB Output is correct
158 Correct 1352 ms 2528 KB Output is correct
159 Correct 1375 ms 2272 KB Output is correct
160 Correct 1375 ms 2524 KB Output is correct
161 Correct 1398 ms 2528 KB Output is correct
162 Correct 1354 ms 2528 KB Output is correct
163 Correct 1395 ms 2272 KB Output is correct
164 Correct 1305 ms 2272 KB Output is correct
165 Correct 1305 ms 2272 KB Output is correct
166 Correct 1317 ms 2272 KB Output is correct
167 Correct 1386 ms 2528 KB Output is correct
168 Correct 1358 ms 2272 KB Output is correct
169 Incorrect 1225 ms 2268 KB Output isn't correct
170 Halted 0 ms 0 KB -