oj.uz

Submission #145581

# Submission time Handle Problem Language Result Execution time Memory
145581 2019-08-20T12:26:58 Z mhy908 Strange Device (APIO19_strange_device) C++14
100 / 100
 739 ms 18896 KB 
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
int n;
LL a, b;
bool iscalc=true;
LL gcd(LL x, LL y)
{
    if(!y)return x;
    return gcd(y, x%y);
}
vector<pll> vc;
int main()
{
    scanf("%d %lld %lld", &n, &a, &b);
    LL temp=a/gcd(a, b+1);
    LL pv=0;
    LL ans=0;
    if(log10(temp)+log10(b)>=18.1)iscalc=false;
    else temp*=b;
    for(int i=1; i<=n; i++){
        LL x, y;
        scanf("%lld %lld", &x, &y);
        if(!iscalc){
            vc.push_back({x, y});
            continue;
        }
        LL xx=x%temp;
        LL yy=y%temp;
        if(x==y)vc.push_back({xx, xx});
        else{
            if(x/temp==y/temp)vc.push_back({xx, yy});
            else if(x/temp+1==y/temp&&xx>=yy)vc.push_back({xx, temp-1}), vc.push_back({0, yy});
            else vc.push_back({0, temp-1});
        }
    }
    sort(vc.begin(), vc.end());
    for(int i=0; i<vc.size(); i++){
        LL e=vc[i].first, r=vc[i].second;
        ans+=(max(pv, vc[i].first)>vc[i].second?0:vc[i].second-max(pv, vc[i].first)+1);
        pv=max(vc[i].second+1, pv);
    }
    printf("%lld", ans);
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<vc.size(); i++){
                  ~^~~~~~~~~~
strange_device.cpp:41:12: warning: unused variable 'e' [-Wunused-variable]
         LL e=vc[i].first, r=vc[i].second;
            ^
strange_device.cpp:41:27: warning: unused variable 'r' [-Wunused-variable]
         LL e=vc[i].first, r=vc[i].second;
                           ^
strange_device.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %lld %lld", &n, &a, &b);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 8 ms 760 KB Output is correct
3 Correct 9 ms 860 KB Output is correct
4 Correct 2 ms 312 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1016 KB Output is correct
17 Correct 65 ms 3504 KB Output is correct
18 Correct 2 ms 256 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 427 ms 17668 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 548 ms 17596 KB Output is correct
3 Correct 545 ms 17656 KB Output is correct
4 Correct 532 ms 17640 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 548 ms 17596 KB Output is correct
3 Correct 545 ms 17656 KB Output is correct
4 Correct 532 ms 17640 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 541 ms 17644 KB Output is correct
7 Correct 548 ms 17556 KB Output is correct
8 Correct 548 ms 17388 KB Output is correct
9 Correct 596 ms 17244 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 548 ms 17596 KB Output is correct
3 Correct 545 ms 17656 KB Output is correct
4 Correct 532 ms 17640 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 55 ms 2644 KB Output is correct
7 Correct 61 ms 2512 KB Output is correct
8 Correct 53 ms 2536 KB Output is correct
9 Correct 56 ms 2540 KB Output is correct
10 Correct 55 ms 2448 KB Output is correct
11 Correct 58 ms 2456 KB Output is correct
12 Correct 56 ms 2540 KB Output is correct
13 Correct 59 ms 2536 KB Output is correct
14 Correct 53 ms 2512 KB Output is correct
15 Correct 61 ms 2540 KB Output is correct
16 Correct 61 ms 2592 KB Output is correct
17 Correct 60 ms 2540 KB Output is correct
18 Correct 562 ms 16924 KB Output is correct
19 Correct 541 ms 16840 KB Output is correct
20 Correct 600 ms 17308 KB Output is correct
21 Correct 61 ms 2792 KB Output is correct
22 Correct 52 ms 2796 KB Output is correct
23 Correct 214 ms 8808 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 58 ms 2536 KB Output is correct
3 Correct 59 ms 2536 KB Output is correct
4 Correct 623 ms 17120 KB Output is correct
5 Correct 58 ms 2800 KB Output is correct
6 Correct 58 ms 2764 KB Output is correct
7 Correct 58 ms 2752 KB Output is correct
8 Correct 61 ms 2512 KB Output is correct
9 Correct 57 ms 2536 KB Output is correct
10 Correct 58 ms 2436 KB Output is correct
11 Correct 59 ms 2540 KB Output is correct
12 Correct 51 ms 2512 KB Output is correct
13 Correct 59 ms 2560 KB Output is correct
14 Correct 590 ms 16992 KB Output is correct
15 Correct 59 ms 2540 KB Output is correct
16 Correct 542 ms 16896 KB Output is correct
17 Correct 534 ms 16956 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 8 ms 760 KB Output is correct
3 Correct 9 ms 860 KB Output is correct
4 Correct 2 ms 312 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1016 KB Output is correct
17 Correct 65 ms 3504 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 3 ms 256 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 427 ms 17668 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 548 ms 17596 KB Output is correct
31 Correct 545 ms 17656 KB Output is correct
32 Correct 532 ms 17640 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 541 ms 17644 KB Output is correct
35 Correct 548 ms 17556 KB Output is correct
36 Correct 548 ms 17388 KB Output is correct
37 Correct 596 ms 17244 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 55 ms 2644 KB Output is correct
40 Correct 61 ms 2512 KB Output is correct
41 Correct 53 ms 2536 KB Output is correct
42 Correct 56 ms 2540 KB Output is correct
43 Correct 55 ms 2448 KB Output is correct
44 Correct 58 ms 2456 KB Output is correct
45 Correct 56 ms 2540 KB Output is correct
46 Correct 59 ms 2536 KB Output is correct
47 Correct 53 ms 2512 KB Output is correct
48 Correct 61 ms 2540 KB Output is correct
49 Correct 61 ms 2592 KB Output is correct
50 Correct 60 ms 2540 KB Output is correct
51 Correct 562 ms 16924 KB Output is correct
52 Correct 541 ms 16840 KB Output is correct
53 Correct 600 ms 17308 KB Output is correct
54 Correct 61 ms 2792 KB Output is correct
55 Correct 52 ms 2796 KB Output is correct
56 Correct 214 ms 8808 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 58 ms 2536 KB Output is correct
59 Correct 59 ms 2536 KB Output is correct
60 Correct 623 ms 17120 KB Output is correct
61 Correct 58 ms 2800 KB Output is correct
62 Correct 58 ms 2764 KB Output is correct
63 Correct 58 ms 2752 KB Output is correct
64 Correct 61 ms 2512 KB Output is correct
65 Correct 57 ms 2536 KB Output is correct
66 Correct 58 ms 2436 KB Output is correct
67 Correct 59 ms 2540 KB Output is correct
68 Correct 51 ms 2512 KB Output is correct
69 Correct 59 ms 2560 KB Output is correct
70 Correct 590 ms 16992 KB Output is correct
71 Correct 59 ms 2540 KB Output is correct
72 Correct 542 ms 16896 KB Output is correct
73 Correct 534 ms 16956 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 256 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 2 ms 256 KB Output is correct
79 Correct 7 ms 1016 KB Output is correct
80 Correct 613 ms 18864 KB Output is correct
81 Correct 612 ms 18664 KB Output is correct
82 Correct 575 ms 18828 KB Output is correct
83 Correct 573 ms 18896 KB Output is correct
84 Correct 588 ms 18896 KB Output is correct
85 Correct 739 ms 18856 KB Output is correct
86 Correct 207 ms 13152 KB Output is correct
87 Correct 2 ms 372 KB Output is correct