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Submission #897487

# Submission time Handle Problem Language Result Execution time Memory
897487 2024-01-03T07:59:36 Z mihtriii295 Telefoni (COCI17_telefoni) C++17
80 / 80
 13 ms 2208 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O2")
#define ll  long long
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define el  cout << '\n' 

using namespace std;

const ll N = 3e5 + 1;
const ll logN = 20;
const ll MOD = 1e9 + 7;

int n, a[N], res, d;
int main(){
    if(fopen("coci1617_r6_telefoni.inp", "r")){
        freopen("coci1617_r6_telefoni.inp", "r", stdin);
        freopen("coci1617_r6_telefoni.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0); cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> d;
    for (int i = 1; i <= n; ++i)
        cin >> a[i];
    int st = 1;
    for (int i = 2; i <= n; ++i){
        if (a[i] == 1){
            if (i - st > d){
                // cout << st << ' ' << i; el;
                res += (i - st - 1) / d;
            }
            st = i;
        }
    }
    cout << res;
    return 0;
}

Compilation message

telefoni.cpp: In function 'int main()':
telefoni.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen("coci1617_r6_telefoni.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
telefoni.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen("coci1617_r6_telefoni.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 12 ms 2208 KB Output is correct
9 Correct 13 ms 2140 KB Output is correct
10 Correct 12 ms 2136 KB Output is correct