Submission #338488

#	Time	Username	Problem	Language	Result	Execution time	Memory
338488		KazamaHoang	Bulldozer (JOI17_bulldozer)	C++14	5 / 100	1 ms	384 KiB

bulldozer

/* -> Written by <-
   -----------
  K_A_Z_A_M_A
  ___________
      _    |
  |   (^_^)   |
  |  /( | )\  |
  |____|_|____|
    H O A N G
*/

#include <bits/stdc++.h>

#define Task            ""
#define F               first
#define S               second
#define pb              push_back
#define bit(x, i)       ((x >> (i)) & 1)
#define inf             1e9 + 7
#define INF             1e18 + 7
#define ll              long long
#define pii             pair <int, int>
#define debug(x)        cerr << #x << " is " << x << "\n";

using namespace std;

const int MOD = 1e9 + 7;
const int maxn = 1e5 + 5;

int n;
pair <pair<int, int>, int> a[maxn];

void Solve(){
    cin >> n;
    for (int i = 1; i <= n; ++ i){
        cin >> a[i].F.F >> a[i].F.S >> a[i].S;
    }
    sort(a + 1, a + 1 + n);
    ll res = 0;
    for (int i = 1; i <= n; ++ i){
        ll ans = 0;
        for (int j = i; j <= n; ++ j){
            ans += a[j].S;
            res = max(res, ans);
        }
    }
    cout << res;
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    if(fopen(Task".inp", "r")){
        freopen(Task".inp","r",stdin);
        freopen(Task".out","w",stdout);
    }
    int test_case = 1;
//     cin >> test_case;
    while (test_case --){
        Solve();
    }

    return 0;
}

Compilation message (stderr)

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:53:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   53 |         freopen(Task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
bulldozer.cpp:54:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   54 |         freopen(Task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 20
• Subtask 3: 0 / 35
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20