Submission #270129

#	Time	Username	Problem	Language	Result	Execution time	Memory
270129		kaplanbar	Go (COCI18_go)	C++14	100 / 100	255 ms	173560 KiB

go

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
struct Pk {
    ll a, b, t;
    bool operator<(const Pk other) const {
        return a < other.a;
    }
} v[105];
int n, m, k;
ll dp[105][105][2005];
ll f(int cur, int far, int T) {

    if(T > 2000) return 0;

    ll &ret = dp[cur][far][T];
    if(~ret) return ret;
    
    ll val = 0;

    if(T < v[cur].t) val += v[cur].b;

    ret = val;

    int d = far > cur ? -1 : 1;
    if(cur + d >= 0 && cur + d < m) {
        ret = max(ret, val + f(cur + d, far, T + abs(v[cur + d].a - v[cur].a)) );
    }
    d *= -1;
    if(far + d >= 0 && far + d < m) {
        ret = max(ret, val + f(far + d, cur, T + abs(v[far+d].a - v[cur].a)) );
    }
    return ret;
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    memset(dp, -1, sizeof dp);
    cin >> n >> k >> m;
    for(int i = 0; i < m; i++) {
        cin >> v[i].a >> v[i].b >> v[i].t;
    }
    v[m++] = {k, 0, 0};
    sort(v, v + m);
    for(int i = 0; i < m; i++) {
        if(v[i].a == k && v[i].b == 0 && v[i].t == 0) {
           cout << f(i,i,0);
        }
    }
    return 0;
}

• Subtask 1: 100 / 100