Submission #1835268


Source Code Expand

#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> mat;
#define FOR(i,a,b) for(int (i)=(a);i<(int)(b);i++)
#define rep(i,n) FOR(i,0,n)
#define ALL(x) (x).begin(),(x).end()
#define RALL(x) (x).rbegin(),(x).rend()
#define mset(a,x) memset(a,x,sizeof(a))
#define FASTIO cin.tie(0),ios::sync_with_stdio(0)


int main() {
    int n, k;
    cin >> n >> k;

    static int a[300000] = {0};
    rep(i, n) scanf("%d", a + i);

    static int sum[300010] = {0};
    rep(i, n - 1) {
        sum[i + 1] += sum[i] + (a[i] < a[i + 1]);
    }

    int ans = 0;
    rep(i, n - k + 1) ans += (sum[k - 1 + i] - sum[i]) == k - 1;
    cout << ans << endl;

    return 0;
}

Submission Info

Submission Time
Task B - 解像度が低い。
User fushime2
Language C++14 (GCC 5.4.1)
Score 100
Code Size 744 Byte
Status AC
Exec Time 33 ms
Memory 2560 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     rep(i, n) scanf("%d", a + i);
                                 ^

Judge Result

Set Name All
Score / Max Score 100 / 100
Status
AC × 30
Set Name Test Cases
All decr2_1.txt, decr2_2.txt, decr_1.txt, decr_2.txt, incr2_1.txt, incr2_2.txt, incr2_3.txt, incr_1.txt, incr_2.txt, incr_3.txt, incr_4.txt, incr_5.txt, ins_1.txt, ins_2.txt, ins_3.txt, ins_4.txt, ins_5.txt, ins_6.txt, ins_7.txt, ins_8.txt, ins_9.txt, random_1.txt, random_2.txt, random_3.txt, random_4.txt, random_5.txt, sample_1.txt, sample_2.txt, sample_3.txt, sample_4.txt
Case Name Status Exec Time Memory
decr2_1.txt AC 4 ms 512 KB
decr2_2.txt AC 4 ms 512 KB
decr_1.txt AC 4 ms 512 KB
decr_2.txt AC 4 ms 512 KB
incr2_1.txt AC 12 ms 1024 KB
incr2_2.txt AC 11 ms 1024 KB
incr2_3.txt AC 12 ms 1024 KB
incr_1.txt AC 32 ms 2560 KB
incr_2.txt AC 11 ms 1024 KB
incr_3.txt AC 32 ms 2560 KB
incr_4.txt AC 32 ms 2560 KB
incr_5.txt AC 32 ms 2560 KB
ins_1.txt AC 32 ms 2560 KB
ins_2.txt AC 32 ms 2560 KB
ins_3.txt AC 32 ms 2560 KB
ins_4.txt AC 32 ms 2560 KB
ins_5.txt AC 32 ms 2560 KB
ins_6.txt AC 32 ms 2560 KB
ins_7.txt AC 33 ms 2560 KB
ins_8.txt AC 32 ms 2560 KB
ins_9.txt AC 33 ms 2560 KB
random_1.txt AC 33 ms 2560 KB
random_2.txt AC 26 ms 2560 KB
random_3.txt AC 33 ms 2560 KB
random_4.txt AC 33 ms 2560 KB
random_5.txt AC 33 ms 2560 KB
sample_1.txt AC 1 ms 256 KB
sample_2.txt AC 1 ms 256 KB
sample_3.txt AC 1 ms 256 KB
sample_4.txt AC 1 ms 256 KB