Submission #768520

#	Time	Username	Problem	Language	Result	Execution time	Memory
768520		nguyentunglam	Two Dishes (JOI19_dishes)	C++17	10 / 100	29 ms	32144 KiB

dishes

#include<bits/stdc++.h>
#define fi first
#define se second
#define endl "\n"
#define ii pair<int, int>
using namespace std;
const int N = 2010;
long long a[N], b[N], s[N], t[N], p[N], q[N];
long long f[N][N];
int main() {
    #define task ""
    cin.tie(0) -> sync_with_stdio(0);
    if (fopen ("task.inp", "r")) {
        freopen ("task.inp", "r", stdin);
        freopen ("task.out", "w", stdout);
    }
    if (fopen (task".inp", "r")) {
        freopen (task".inp", "r", stdin);
        freopen (task".out", "w", stdout);
    }
    int n, m; cin >> n >> m;
    for(int i = 1; i <= n; i++) {
        cin >> a[i] >> s[i] >> p[i];
        a[i] += a[i - 1];
    }
    for(int i = 1; i <= m; i++) {
        cin >> b[i] >> t[i] >> q[i];
        b[i] += b[i - 1];
    }
    memset(f, -127, sizeof(f));
    f[0][0] = 0;
    for(int i = 0; i <= n; i++) for(int j = 0; j <= m; j++) {
        if (i == 0 && j == 0) continue;
        if (i) f[i][j] = max(f[i][j], f[i - 1][j] + (a[i] + b[j] <= s[i]) * p[i]);
        if (j) f[i][j] = max(f[i][j], f[i][j - 1] + (a[i] + b[j] <= t[j]) * q[j]);
    }
    cout << f[n][m];
}

Compilation message (stderr)

dishes.cpp: In function 'int main()':
dishes.cpp:14:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         freopen ("task.inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:15:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         freopen ("task.out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:18:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen (task".inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:19:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         freopen (task".out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 3 / 3
• Subtask 3: 7 / 7
• Subtask 4: 0 / 39
• Subtask 5: 0 / 11
• Subtask 6: 0 / 9
• Subtask 7: 0 / 17
• Subtask 8: 0 / 9