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Submission #889557

# Submission time Handle Problem Language Result Execution time Memory
889557 2023-12-20T02:18:48 Z rukashii Strange Device (APIO19_strange_device) C++17
10 / 100
 231 ms 53148 KB 
#include <bits/stdc++.h>
using namespace std;

#define file if (fopen("input.txt", "r")) { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); }
#define int long long

void setIn(string s) { freopen(s.c_str(), "r", stdin); }
void setOut(string s) { freopen(s.c_str(), "w", stdout); }
void setIO(string s = "") {
    if (s.size()) setIn(s+".inp"), setOut(s+".out");
}

const int allmaxn = 1e6 + 2;

int n, A, B, l[allmaxn], r[allmaxn];

namespace Sub1
{
    bool Check()
    {
        int S = 0;
        for (int i = 1; i <= n; i++)
            S += (r[i] - l[i] + 1);
        return (S <= 1e6);
    }

    void solve()
    {
        set <pair <int, int>> s;
        for (int i = 1; i <= n; i++)
        {
            for (int j = l[i]; j <= r[i]; j++)
            {
                s.insert({(j + j / B) % A, j % B});
            }
        }

        cout << s.size();
    }
} // namespace Sub1


signed main()
{
    // setIO();
    file;
    ios::sync_with_stdio(0); cin.tie(0);

    cin >> n >> A >> B;
    for (int i = 1; i <= n; i++)
        cin >> l[i] >> r[i];

    if (Sub1::Check()) return Sub1::solve(), 0;
}

Compilation message

strange_device.cpp: In function 'void setIn(std::string)':
strange_device.cpp:7:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 | void setIn(string s) { freopen(s.c_str(), "r", stdin); }
      |                        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp: In function 'void setOut(std::string)':
strange_device.cpp:8:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 | void setOut(string s) { freopen(s.c_str(), "w", stdout); }
      |                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp: In function 'int main()':
strange_device.cpp:4:52: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    4 | #define file if (fopen("input.txt", "r")) { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); }
      |                                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:46:5: note: in expansion of macro 'file'
   46 |     file;
      |     ^~~~
strange_device.cpp:4:86: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    4 | #define file if (fopen("input.txt", "r")) { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); }
      |                                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:46:5: note: in expansion of macro 'file'
   46 |     file;
      |     ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 33 ms 14932 KB Output is correct
3 Correct 54 ms 20564 KB Output is correct
4 Correct 2 ms 2908 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 6 ms 3412 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 31 ms 9100 KB Output is correct
16 Correct 21 ms 9308 KB Output is correct
17 Correct 43 ms 16724 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 0 ms 2396 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 99 ms 34412 KB Output is correct
3 Correct 124 ms 34128 KB Output is correct
4 Correct 101 ms 32596 KB Output is correct
5 Incorrect 175 ms 41120 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Incorrect 231 ms 53148 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Incorrect 231 ms 53148 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Incorrect 231 ms 53148 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 28 ms 10372 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 33 ms 14932 KB Output is correct
3 Correct 54 ms 20564 KB Output is correct
4 Correct 2 ms 2908 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 6 ms 3412 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 31 ms 9100 KB Output is correct
16 Correct 21 ms 9308 KB Output is correct
17 Correct 43 ms 16724 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Incorrect 0 ms 2396 KB Output isn't correct
21 Halted 0 ms 0 KB -