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Submission #492340

# Submission time Handle Problem Language Result Execution time Memory
492340 2021-12-06T19:21:31 Z aris12345678 Studentsko (COCI14_studentsko) C++14
20 / 100
 2 ms 332 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> pii;
#define X first
#define Y second

const int mxN = 5005;
pii v[mxN];

int main() {
    int n, k;
    scanf("%d %d", &n, &k);
    for(int i = 0; i < n; i++) {
        scanf("%d", &v[i].X);
        v[i].Y = i;
    }
    sort(v, v+n);
    vector<int> pos(n);
    for(int i = 0; i < n; i++)
        pos[v[i].Y] = i/k;
    vector<int> dp;
    for(int i = 0; i < n; i++) {
        if(dp.empty())
            dp.push_back(pos[i]);
        else if(dp[int(dp.size()-1)] <= pos[i])
            dp.push_back(pos[i]);
        else {
            int p = lower_bound(dp.begin(), dp.end(), pos[i])-dp.begin();
            dp[p] = pos[i];
        }
    }
    printf("%d\n", n-int(dp.size()));
    return 0;
}

Compilation message

studentsko.cpp: In function 'int main()':
studentsko.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
studentsko.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d", &v[i].X);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 332 KB Output isn't correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 332 KB Output isn't correct

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -