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Submission #370781

# Submission time Handle Problem Language Result Execution time Memory
370781 2021-02-24T15:20:03 Z cpp219 Strange Device (APIO19_strange_device) C++14
65 / 100
 531 ms 31932 KB 
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")

#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define fs first
#define sc second
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 1e6 + 3;
const ll inf = 1e9 + 7;
LL a[N];
ll n,A,B,q,total;
vector<LL> v;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    #define task "tst"
    if (fopen(task".INP","r")){
        freopen(task".INP","r",stdin);
        //freopen(task".OUT","w",stdout);
    }
    cin>>n>>A>>B; q = A/__gcd(B + 1,A); total = q * B;
    for (ll i = 1;i <= n;i++){
        cin>>a[i].fs>>a[i].sc;
        a[i].fs %= total; a[i].sc %= total;
        if (a[i].fs <= a[i].sc) v.push_back(a[i]);
        else{
            v.push_back({0,a[i].sc}); v.push_back({a[i].fs,total - 1});
        }
    }
    sort(v.begin(),v.end());
    ll mx = -inf,ans = 0;
    for (auto i : v){
        if (i.sc <= mx) continue;
        if (i.fs > mx) ans += i.sc - i.fs + 1;
        else ans += max(0ll,i.sc - mx);
        mx = max(mx,i.sc);
    }
    cout<<ans;
}

Compilation message

strange_device.cpp:2: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    2 | #pragma GCC optimization ("O3")
      | 
strange_device.cpp:3: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("unroll-loops")
      | 
strange_device.cpp: In function 'int main()':
strange_device.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   23 |         freopen(task".INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 5 ms 876 KB Output is correct
3 Correct 5 ms 876 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 50 ms 3560 KB Output is correct
18 Correct 1 ms 364 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 349 ms 31840 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 467 ms 31844 KB Output is correct
3 Correct 492 ms 31756 KB Output is correct
4 Correct 448 ms 31812 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 467 ms 31844 KB Output is correct
3 Correct 492 ms 31756 KB Output is correct
4 Correct 448 ms 31812 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 472 ms 31804 KB Output is correct
7 Correct 451 ms 31932 KB Output is correct
8 Correct 450 ms 31804 KB Output is correct
9 Correct 498 ms 31804 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 467 ms 31844 KB Output is correct
3 Correct 492 ms 31756 KB Output is correct
4 Correct 448 ms 31812 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 44 ms 3596 KB Output is correct
7 Correct 49 ms 3560 KB Output is correct
8 Correct 46 ms 3560 KB Output is correct
9 Correct 46 ms 3560 KB Output is correct
10 Correct 46 ms 3560 KB Output is correct
11 Correct 50 ms 3560 KB Output is correct
12 Correct 44 ms 3560 KB Output is correct
13 Correct 47 ms 3560 KB Output is correct
14 Correct 44 ms 3560 KB Output is correct
15 Correct 54 ms 3560 KB Output is correct
16 Correct 47 ms 3560 KB Output is correct
17 Correct 46 ms 3560 KB Output is correct
18 Correct 465 ms 31932 KB Output is correct
19 Correct 448 ms 31804 KB Output is correct
20 Correct 514 ms 31872 KB Output is correct
21 Correct 48 ms 3560 KB Output is correct
22 Correct 42 ms 3560 KB Output is correct
23 Correct 144 ms 12764 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 49 ms 3704 KB Output is correct
3 Correct 48 ms 3560 KB Output is correct
4 Correct 531 ms 31804 KB Output is correct
5 Correct 47 ms 3560 KB Output is correct
6 Correct 47 ms 3560 KB Output is correct
7 Correct 51 ms 3560 KB Output is correct
8 Correct 50 ms 3692 KB Output is correct
9 Correct 49 ms 3560 KB Output is correct
10 Correct 48 ms 3684 KB Output is correct
11 Correct 50 ms 3704 KB Output is correct
12 Correct 42 ms 3560 KB Output is correct
13 Correct 48 ms 3560 KB Output is correct
14 Correct 504 ms 31804 KB Output is correct
15 Correct 47 ms 3560 KB Output is correct
16 Correct 458 ms 31804 KB Output is correct
17 Correct 447 ms 31804 KB Output is correct
18 Correct 1 ms 364 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 5 ms 876 KB Output is correct
3 Correct 5 ms 876 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 50 ms 3560 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Incorrect 1 ms 364 KB Output isn't correct
21 Halted 0 ms 0 KB -