Submission #1246772

#	Time	Username	Problem	Language	Result	Execution time	Memory
1246772		CodeLakVN	Schools (IZhO13_school)	C++20	30 / 100	83 ms	175432 KiB

school

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

#define task "main"
#define no "NO"
#define yes "YES"
#define F first
#define S second
#define vec vector
#define _mp make_pair
#define ii pair<int, int>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define evoid(val) return void(std::cout << val)
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define FOD(i, b, a) for(int i = (b); i >= (a); --i)

template<class X, class Y>
    bool maximize(X &x, Y y) {
        if (x < y) {
            x = y;
            return true;
        }
        return false;
    }

const int MAX_N = (int)3e5 + 5;

int numStudent, musicSchool, sportsSchool;
int musicLovers[MAX_N], sportsLovers[MAX_N];

namespace sub1 {
    const int MAX_N = (int)355;

    int dp[MAX_N][MAX_N][MAX_N];

    void solve() {
        memset(dp, 0, sizeof(dp));
        FOR(i, 1, numStudent) FOR(j, 0, musicSchool) FOR(k, 0, sportsSchool) {
            dp[i][j][k] = dp[i - 1][j][k];
            if (j < musicSchool)
                maximize(dp[i][j][k], dp[i - 1][j + 1][k] + musicLovers[i]);
            if (k < sportsSchool)
                maximize(dp[i][j][k], dp[i - 1][j][k + 1] + sportsLovers[i]);
        }

        cout << dp[numStudent][0][0] << "\n";
    }
}

void solve() {
    cin >> numStudent >> musicSchool >> sportsSchool;
    FOR(i, 1, numStudent) cin >> musicLovers[i] >> sportsLovers[i];

    if (numStudent <= 350) sub1::solve();
}

int32_t main() {
    if (fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    bool multitest = 0;
    int numTest = 1;
    if (multitest) cin >> numTest;

    while (numTest--) {
        solve();
    }

    return 0;
}

/* Lak lu theo dieu nhac!!!! */

Compilation message (stderr)

school.cpp: In function 'int32_t main()':
school.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
school.cpp:61:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 100