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Submission #540605

# Submission time Handle Problem Language Result Execution time Memory
540605 2022-03-21T06:51:02 Z krit3379 Strange Device (APIO19_strange_device) C++14
100 / 100
 529 ms 53324 KB 
#include<bits/stdc++.h>
using namespace std;
#define N 1000005
 
long long a,b,g,rb,l,r,ll,rr,flag,ans;
vector<pair<long long,long long>> p;
 
int main(){
    int n,i;
    scanf("%d %lld %lld",&n,&a,&b);
    g=__gcd(a,b+1);
    r=a/g;
    if(1e18/r>=b)rb=r*b;
    else rb=1e18+1;
    for(i=1;i<=n;i++){
        scanf("%lld %lld",&l,&r);
        if(r-l+1>=rb)flag=true;
        l%=rb;
        r%=rb;
        if(l<=r)p.push_back({l,r});
        else p.push_back({l,rb-1}),p.push_back({0,r});
    }
    if(flag){printf("%lld",rb);return 0;}
    sort(p.begin(),p.end());
    ll=-1;
    rr=-2;
    for(auto [l,r]:p){
        if(l<=rr)rr=max(rr,r);
        else{
            ans+=rr-ll+1;
            ll=l,rr=r;
        }
    }
    ans+=rr-ll+1;
    printf("%lld",ans);
    return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:27:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   27 |     for(auto [l,r]:p){
      |              ^
strange_device.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d %lld %lld",&n,&a,&b);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         scanf("%lld %lld",&l,&r);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 596 KB Output is correct
3 Correct 5 ms 1036 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 304 KB Output is correct
9 Correct 1 ms 300 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 304 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 5 ms 968 KB Output is correct
17 Correct 48 ms 5664 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 329 ms 41220 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 478 ms 16736 KB Output is correct
3 Correct 408 ms 16780 KB Output is correct
4 Correct 392 ms 16804 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 478 ms 16736 KB Output is correct
3 Correct 408 ms 16780 KB Output is correct
4 Correct 392 ms 16804 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 421 ms 16924 KB Output is correct
7 Correct 415 ms 16884 KB Output is correct
8 Correct 406 ms 16784 KB Output is correct
9 Correct 437 ms 16740 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 478 ms 16736 KB Output is correct
3 Correct 408 ms 16780 KB Output is correct
4 Correct 392 ms 16804 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 41 ms 2424 KB Output is correct
7 Correct 43 ms 2412 KB Output is correct
8 Correct 45 ms 2388 KB Output is correct
9 Correct 41 ms 2476 KB Output is correct
10 Correct 40 ms 2376 KB Output is correct
11 Correct 43 ms 2376 KB Output is correct
12 Correct 40 ms 2480 KB Output is correct
13 Correct 43 ms 2472 KB Output is correct
14 Correct 39 ms 2488 KB Output is correct
15 Correct 44 ms 2400 KB Output is correct
16 Correct 48 ms 5592 KB Output is correct
17 Correct 46 ms 5612 KB Output is correct
18 Correct 447 ms 53240 KB Output is correct
19 Correct 435 ms 53256 KB Output is correct
20 Correct 489 ms 53320 KB Output is correct
21 Correct 46 ms 5672 KB Output is correct
22 Correct 43 ms 5620 KB Output is correct
23 Correct 135 ms 18384 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 45 ms 2504 KB Output is correct
3 Correct 45 ms 2536 KB Output is correct
4 Correct 486 ms 16888 KB Output is correct
5 Correct 43 ms 2496 KB Output is correct
6 Correct 43 ms 2448 KB Output is correct
7 Correct 57 ms 2500 KB Output is correct
8 Correct 43 ms 2552 KB Output is correct
9 Correct 43 ms 2472 KB Output is correct
10 Correct 46 ms 2520 KB Output is correct
11 Correct 44 ms 2508 KB Output is correct
12 Correct 38 ms 2560 KB Output is correct
13 Correct 45 ms 2520 KB Output is correct
14 Correct 443 ms 16972 KB Output is correct
15 Correct 53 ms 5788 KB Output is correct
16 Correct 451 ms 53324 KB Output is correct
17 Correct 440 ms 53244 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 596 KB Output is correct
3 Correct 5 ms 1036 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 304 KB Output is correct
9 Correct 1 ms 300 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 304 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 5 ms 968 KB Output is correct
17 Correct 48 ms 5664 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 329 ms 41220 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 478 ms 16736 KB Output is correct
31 Correct 408 ms 16780 KB Output is correct
32 Correct 392 ms 16804 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 421 ms 16924 KB Output is correct
35 Correct 415 ms 16884 KB Output is correct
36 Correct 406 ms 16784 KB Output is correct
37 Correct 437 ms 16740 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 41 ms 2424 KB Output is correct
40 Correct 43 ms 2412 KB Output is correct
41 Correct 45 ms 2388 KB Output is correct
42 Correct 41 ms 2476 KB Output is correct
43 Correct 40 ms 2376 KB Output is correct
44 Correct 43 ms 2376 KB Output is correct
45 Correct 40 ms 2480 KB Output is correct
46 Correct 43 ms 2472 KB Output is correct
47 Correct 39 ms 2488 KB Output is correct
48 Correct 44 ms 2400 KB Output is correct
49 Correct 48 ms 5592 KB Output is correct
50 Correct 46 ms 5612 KB Output is correct
51 Correct 447 ms 53240 KB Output is correct
52 Correct 435 ms 53256 KB Output is correct
53 Correct 489 ms 53320 KB Output is correct
54 Correct 46 ms 5672 KB Output is correct
55 Correct 43 ms 5620 KB Output is correct
56 Correct 135 ms 18384 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 45 ms 2504 KB Output is correct
59 Correct 45 ms 2536 KB Output is correct
60 Correct 486 ms 16888 KB Output is correct
61 Correct 43 ms 2496 KB Output is correct
62 Correct 43 ms 2448 KB Output is correct
63 Correct 57 ms 2500 KB Output is correct
64 Correct 43 ms 2552 KB Output is correct
65 Correct 43 ms 2472 KB Output is correct
66 Correct 46 ms 2520 KB Output is correct
67 Correct 44 ms 2508 KB Output is correct
68 Correct 38 ms 2560 KB Output is correct
69 Correct 45 ms 2520 KB Output is correct
70 Correct 443 ms 16972 KB Output is correct
71 Correct 53 ms 5788 KB Output is correct
72 Correct 451 ms 53324 KB Output is correct
73 Correct 440 ms 53244 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 1 ms 304 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 5 ms 980 KB Output is correct
80 Correct 529 ms 53192 KB Output is correct
81 Correct 512 ms 53232 KB Output is correct
82 Correct 479 ms 53140 KB Output is correct
83 Correct 482 ms 53232 KB Output is correct
84 Correct 480 ms 52996 KB Output is correct
85 Correct 473 ms 52900 KB Output is correct
86 Correct 145 ms 18712 KB Output is correct
87 Correct 1 ms 212 KB Output is correct