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Submission #197756

# Submission time Handle Problem Language Result Execution time Memory
197756 2020-01-22T19:28:33 Z Ruxandra985 Strange Device (APIO19_strange_device) C++14
100 / 100
 849 ms 43868 KB 
#include <bits/stdc++.h>
#define DIMN 5000010
using namespace std;
pair <long long,int> v[DIMN];
map <pair <long long , long long> , long long> mp;
long long cmmdc (long long x , long long y){
    long long r;
    while (y){
        r = x % y;
        x = y;
        y = r;
    }
    return x;
 
}
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n , over , elem , i , into;
    long long a , b, l , r , sol;
    fscanf (fin,"%d%lld%lld",&n,&a,&b);
    a /= cmmdc (a , b + 1);
    over = 0;
    if ( a > 1000000000000000000LL / b )
        over = 1;
    elem = 0;
    for (i=1;i<=n;i++){
        fscanf (fin,"%lld%lld",&l,&r);
        if (over){
            /// dau resturile l si r
            v[++elem] = make_pair( l , 1 ); /// begin
            v[++elem] = make_pair( r + 1 , 0 ); /// end
        }
        else {
            if (r - l + 1 >= a * b){ /// sunt toate resturile
                v[++elem] = make_pair( 0 , 1 ); /// begin
                v[++elem] = make_pair( a * b , 0 ); /// end
            }
            else {
                l = l % (a * b);
                r = r % (a * b);
 
                if (l <= r){
                    v[++elem] = make_pair( l , 1 ); /// begin
                    v[++elem] = make_pair( r + 1 , 0 ); /// end
                }
                else { /// se duce l ..  ab - 1 0 ... r
                    v[++elem] = make_pair( l , 1 ); /// begin
                    v[++elem] = make_pair( a * b , 0 ); /// end
                    v[++elem] = make_pair( 0 , 1 ); /// begin
                    v[++elem] = make_pair( r + 1 , 0 ); /// end
                }
 
            }
 
        }
    }
 
    /*for (long long j = 0; j < a * b ; j++){
        if( mp[make_pair((j + j / b) % a , j % b)]){
            fprintf (fout,"%lld\n",mp[make_pair((j + j / b) % a , j % b)] - j);
            break;
        }
        mp[make_pair((j + j / b) % a , j % b)] = j;
    }*/
    /// acum eu am un vector de evenimente , vr sa vad reunuiunea
    sol = 0;
 
    sort (v + 1 , v + elem + 1);
    into = 0;
    for ( i = 1 ; i <= elem ; i++ ){
 
        while (i < elem && v[i].first == v[i+1].first){
            if (v[i].second == 1)
                into++;
            else into--;
            i++;
        }
        if (i == elem)
            break;
        if (v[i].second == 1)
            into++;
        else into--;
        if (into > 0){
            sol = sol + v[i+1].first - v[i].first;
        }
    }
    fprintf (fout,"%lld",sol);
 
    return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:22:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d%lld%lld",&n,&a,&b);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:29:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%lld%lld",&l,&r);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 8 ms 1016 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1016 KB Output is correct
17 Correct 73 ms 4708 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 2 ms 408 KB Output is correct
3 Correct 2 ms 376 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 478 ms 32236 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 631 ms 32060 KB Output is correct
3 Correct 673 ms 32248 KB Output is correct
4 Correct 641 ms 32128 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 631 ms 32060 KB Output is correct
3 Correct 673 ms 32248 KB Output is correct
4 Correct 641 ms 32128 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 671 ms 31972 KB Output is correct
7 Correct 631 ms 40512 KB Output is correct
8 Correct 659 ms 43868 KB Output is correct
9 Correct 755 ms 40396 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 631 ms 32060 KB Output is correct
3 Correct 673 ms 32248 KB Output is correct
4 Correct 641 ms 32128 KB Output is correct
5 Correct 2 ms 128 KB Output is correct
6 Correct 61 ms 4728 KB Output is correct
7 Correct 65 ms 4728 KB Output is correct
8 Correct 62 ms 4728 KB Output is correct
9 Correct 65 ms 4732 KB Output is correct
10 Correct 61 ms 4728 KB Output is correct
11 Correct 66 ms 4728 KB Output is correct
12 Correct 63 ms 4728 KB Output is correct
13 Correct 72 ms 4856 KB Output is correct
14 Correct 62 ms 4728 KB Output is correct
15 Correct 74 ms 4696 KB Output is correct
16 Correct 72 ms 4728 KB Output is correct
17 Correct 66 ms 4728 KB Output is correct
18 Correct 675 ms 43732 KB Output is correct
19 Correct 630 ms 40212 KB Output is correct
20 Correct 781 ms 40196 KB Output is correct
21 Correct 82 ms 7332 KB Output is correct
22 Correct 58 ms 7160 KB Output is correct
23 Correct 209 ms 14072 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 70 ms 4728 KB Output is correct
3 Correct 70 ms 4796 KB Output is correct
4 Correct 843 ms 32132 KB Output is correct
5 Correct 71 ms 4728 KB Output is correct
6 Correct 72 ms 4700 KB Output is correct
7 Correct 72 ms 7160 KB Output is correct
8 Correct 76 ms 7168 KB Output is correct
9 Correct 66 ms 7260 KB Output is correct
10 Correct 74 ms 7212 KB Output is correct
11 Correct 72 ms 7260 KB Output is correct
12 Correct 64 ms 7288 KB Output is correct
13 Correct 75 ms 7160 KB Output is correct
14 Correct 738 ms 40796 KB Output is correct
15 Correct 74 ms 7160 KB Output is correct
16 Correct 615 ms 39544 KB Output is correct
17 Correct 650 ms 39272 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 256 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 8 ms 1016 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1016 KB Output is correct
17 Correct 73 ms 4708 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 380 KB Output is correct
20 Correct 2 ms 408 KB Output is correct
21 Correct 2 ms 376 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 478 ms 32236 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 631 ms 32060 KB Output is correct
31 Correct 673 ms 32248 KB Output is correct
32 Correct 641 ms 32128 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 671 ms 31972 KB Output is correct
35 Correct 631 ms 40512 KB Output is correct
36 Correct 659 ms 43868 KB Output is correct
37 Correct 755 ms 40396 KB Output is correct
38 Correct 2 ms 128 KB Output is correct
39 Correct 61 ms 4728 KB Output is correct
40 Correct 65 ms 4728 KB Output is correct
41 Correct 62 ms 4728 KB Output is correct
42 Correct 65 ms 4732 KB Output is correct
43 Correct 61 ms 4728 KB Output is correct
44 Correct 66 ms 4728 KB Output is correct
45 Correct 63 ms 4728 KB Output is correct
46 Correct 72 ms 4856 KB Output is correct
47 Correct 62 ms 4728 KB Output is correct
48 Correct 74 ms 4696 KB Output is correct
49 Correct 72 ms 4728 KB Output is correct
50 Correct 66 ms 4728 KB Output is correct
51 Correct 675 ms 43732 KB Output is correct
52 Correct 630 ms 40212 KB Output is correct
53 Correct 781 ms 40196 KB Output is correct
54 Correct 82 ms 7332 KB Output is correct
55 Correct 58 ms 7160 KB Output is correct
56 Correct 209 ms 14072 KB Output is correct
57 Correct 2 ms 252 KB Output is correct
58 Correct 70 ms 4728 KB Output is correct
59 Correct 70 ms 4796 KB Output is correct
60 Correct 843 ms 32132 KB Output is correct
61 Correct 71 ms 4728 KB Output is correct
62 Correct 72 ms 4700 KB Output is correct
63 Correct 72 ms 7160 KB Output is correct
64 Correct 76 ms 7168 KB Output is correct
65 Correct 66 ms 7260 KB Output is correct
66 Correct 74 ms 7212 KB Output is correct
67 Correct 72 ms 7260 KB Output is correct
68 Correct 64 ms 7288 KB Output is correct
69 Correct 75 ms 7160 KB Output is correct
70 Correct 738 ms 40796 KB Output is correct
71 Correct 74 ms 7160 KB Output is correct
72 Correct 615 ms 39544 KB Output is correct
73 Correct 650 ms 39272 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 2 ms 376 KB Output is correct
79 Correct 7 ms 1016 KB Output is correct
80 Correct 840 ms 38820 KB Output is correct
81 Correct 849 ms 42896 KB Output is correct
82 Correct 740 ms 38904 KB Output is correct
83 Correct 736 ms 37844 KB Output is correct
84 Correct 750 ms 41864 KB Output is correct
85 Correct 777 ms 37976 KB Output is correct
86 Correct 211 ms 13048 KB Output is correct
87 Correct 2 ms 256 KB Output is correct