oj.uz

Submission #38210

# Submission time Handle Problem Language Result Execution time Memory
38210 2018-01-03T04:17:30 Z Talant Money (IZhO17_money) C++14
0 / 100
 0 ms 9828 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define OK puts("OK");
#define pb push_back
#define mk make_pair

using namespace std;

typedef long long ll;

const ll inf = (ll)1e9 + 7;
const int N = (int)1e6 + 1;

int n;
int a[N + 5],t[N + 5],lst = 1;
int ans;

void update (int pos) {
        for (; pos <= N; pos += (pos & (-pos)))
                t[pos] ++;
}

int get (int pos) {
        int res = 0;
        for (; pos > 0; pos -= (pos & (-pos)))
                res += t[pos];
        return res;
}

int main () {
        scanf ("%d", &n);

        for (int i = 1; i <= n; i ++)
                scanf ("%d", &a[i]);

        update (a[1]);

        for (int i = 2; i <= n; i ++) {
                update (a[i]);

                if (a[i] == a[i - 1])
                        continue;

                if (a[i] >= a[i - 1]) {
                        int o = get(a[i] - 1) - get(a[lst]);

                        if (o) {
                                ans ++;
                                lst = i;
                        }
                }
                else {
                        lst = i;
                        ans ++;
                }
        }
        ans ++;

        cout << ans << endl;
}
/**
6
3 6 4 5 1 2
**/

Compilation message

money.cpp: In function 'int main()':
money.cpp:33:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", &n);
                         ^
money.cpp:36:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
                 scanf ("%d", &a[i]);
                                    ^

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9828 KB Output is correct
2 Incorrect 0 ms 9828 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9828 KB Output is correct
2 Incorrect 0 ms 9828 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9828 KB Output is correct
2 Incorrect 0 ms 9828 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9828 KB Output is correct
2 Incorrect 0 ms 9828 KB Output isn't correct
3 Halted 0 ms 0 KB -