oj.uz

Submission #407030

# Submission time Handle Problem Language Result Execution time Memory
407030 2021-05-18T11:30:01 Z LptN21 Akcija (COCI15_akcija) C++14
80 / 80
 23 ms 1240 KB 
#include <bits/stdc++.h>
using namespace std;
#define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
#define FF first
#define SS second
#define pb push_back
#define sz(x) (int)x.size()
#define oo 1e9
#define eps 1e-9
#define PI acos(-1.0)
#define lb lower_bound
#define ub upper_bound
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> ii;
const int N = 1e5+7, M=1000+7;
const int MOD = 1e9+7;

int n, m, k, t;

int a[N];

signed main() {
    //freopen("test.inp", "r", stdin);
    //freopen("test.out", "w", stdout);
    //fastIO;
    scanf("%d", &n);
    for(int i=1;i<=n;i++) scanf("%d", &a[i]);
    sort(a+1, a+n+1);int ans=0;
    for(int j=0, i=n;i>0;i--) {
        j++;if(j==3) {j=0;continue;}
        ans+=a[i];
    }
    printf("%d", ans);
    return 0;
}
/* stuff you should look for
    - int overflow, array bounds
    - special cases (n=1?)
    - do smth instead of do nothing and stay organized
    - WRITE STUFF DOWN
    - DONT JUST STICK ON ONE APPROACH
*/

Compilation message

akcija.cpp: In function 'int main()':
akcija.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
akcija.cpp:28:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     for(int i=1;i<=n;i++) scanf("%d", &a[i]);
      |                           ~~~~~^~~~~~~~~~~~~

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 16 ms 972 KB Output is correct
7 Correct 12 ms 1040 KB Output is correct
8 Correct 15 ms 1060 KB Output is correct
9 Correct 23 ms 1240 KB Output is correct
10 Correct 20 ms 1216 KB Output is correct