Submission #492340

#	Time	Username	Problem	Language	Result	Execution time	Memory
492340		aris12345678	Studentsko (COCI14_studentsko)	C++14	20 / 100	2 ms	332 KiB

studentsko

#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 (stderr)

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 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10