제출 #1225676

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1225676		Dreamy_lovesper	Autobus (COCI22_autobus)	C++20	0 / 70	430 ms	589824 KiB

Main

#include <bits/stdc++.h>

using namespace std;

// Do you think you'll ever remember me someday, or will I just fade away from your memory?
#define LIFESUCK ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll int
#define str string
#define mll map<ll, ll>
#define vll vector<ll>
#define pll pair<ll, ll>
#define fi first 
#define se second 
#define all(c) c.begin(), c.end()
#define pb push_back
#define debug cout << "I Love You\n";
#define fu(i, a, b) for (int i = a; i <= b; i++)
#define fd(i, b, a) for (int i = b; i >= a; i--)
#define Bitc(msk, j) ((msk >> j) & 1)
#define _log(x) 31 - __builtin_clz(x)

const ll Mod = 1e9 + 7;
const ll inf = (1ll << 30);
const ll lnf = (1ll << 60);

// When time passes and things change... will you still remember someone like me?
int64_t add(ll &a, ll b) {
    a += b;
    if (a >= Mod) a %= Mod;
    while (a < 0) a += Mod;
    return a;
}
int64_t mul(ll a, ll b) {
    a = 1ll * a * b % Mod;
    return a;
}

template <class X, class Y>
bool minimize(X &x, Y y) {
    X eps = 1e-9;
    if (x > y + eps) {
        x = y;
        return 1;
    }
    return 0;
}

template <class X, class Y>
bool maximize(X &x, Y y) {
    X eps = 1e-9;
    if (x + eps < y) {
        x = y;
        return 1;
    }
    return 0;
}

// I wonder… will I just become a distant memory to you one day?
#define mxn 1'00'007
#define maxN 77
ll n, m, k, q;
vector<pll> graph[maxN];

ll sad = 0;
    
void dfs(ll u, ll p, ll time, ll sum, ll end) {
    if(u == end) {
        if(time <= k) minimize(sad, sum);
        return;
    }

    for(auto&[v, w]: graph[u]) {
        if(v == p) continue;
        dfs(v, u, time + 1, sum + w, end);
    }
}

void lovesper(const ll &TestCase) {
    
    cin >> n >> m;
    fu(i, 1, m) {
        ll u, v, w; cin >> u >> v >> w;
        graph[u].pb({v, w});
        // edge[i] = {u, v, w};
    }

    cin >> k >> q;
    fu(qst, 1, q) { 
        ll s, t; cin >> s >> t;
        sad = 1e9;
        dfs(s, 0, 0, 0, t);
        if(sad >= 1e9) cout << -1 << '\n';
        else cout << sad << '\n';
    }

    // if(Love1::check()) {
    //     Love1::DreamyLove();
    //     return;
    // }

}

signed main() {
    LIFESUCK

    #define name "lovesper"
    // freopen(name".inp", "r", stdin);
    // freopen(name".out", "w", stdout);
    
    ll Test = 1;
    // cin >> Test;

    fu(i, 1, Test) {
        lovesper(i);
        if (i < Test) cout << '\n';
    }

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp:24:21: warning: overflow in conversion from 'long long int' to 'int' changes value from '1152921504606846976' to '0' [-Woverflow]
   24 | const ll lnf = (1ll << 60);
      |                ~~~~~^~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 25
• Subtask 4: 0 / 15