Submission #1091880

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091880		huyngo	Rail (IOI14_rail)	C++17	30 / 100	331 ms	98656 KiB

rail

#include "rail.h"
#include <bits/stdc++.h>  
using namespace std;
using ll = long long;
using i64 = long long;
void __print(int x) { cerr << x; } void __print(long x) { cerr << x; } void __print(long long x) { cerr << x; } void __print(unsigned x) { cerr << x; } void __print(unsigned long x) { cerr << x; } void __print(unsigned long long x) { cerr << x; } void __print(float x) { cerr << x; } void __print(double x) { cerr << x; } void __print(long double x) { cerr << x; } void __print(char x) { cerr << '\'' << x << '\''; } void __print(const char* x) { cerr << '"' << x << '"'; } void __print(const string& x) { cerr << '"' << x << '"'; } void __print(bool x) { cerr << (x ? "true" : "false"); } template<typename T, typename V> void __print(const pair<T, V>& x) { cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}'; } template<typename T> void __print(const T& x) { int f = 0; cerr << '{'; for (auto& i : x) cerr << (f++ ? "," : ""), __print(i); cerr << "}"; } void _print() { cerr << "]\n"; } template <typename T, typename... V> void _print(T t, V... v) { __print(t); if (sizeof...(v)) cerr << ", "; _print(v...); }
#define dbg(x...) cerr << "[" << #x << "] = ["; _print(x)
#define ln "\n"
#define fastIO() ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i=a; i<=b; ++i)
#define ar array
int Bit(int mask, int b) { return (mask >> b) & 1; }
const ll base = 311, MOD = 998244353, M = 1e9 + 7, INF = 1e18;

// getDistance(station_i, station_j)
// type 1:down, 2: up

void findLocation(int N, int first, int location[], int stype[]) {
    location[0] = first;
    vector<vector<int>> d(N, vector<int>(N));
    fill_n(stype, N, 0);
    stype[0] = 1;
    auto print = [&](int a[]) -> void {
        cerr << "{";
        rep(i, 0, N - 1)
            cerr << a[i] << " ";
        cerr << "}\n";
        };

    for (int i = 0; i < N; ++i)
        for (int j = 0; j < N; ++j)
            d[i][j] = getDistance(i, j);

    // rep(i, 1, N - 1) {
    //     location[i] = first + d[0][i];
    //     stype[i] = 2;
    // }

    int tmp = 1;
    rep(i, 1, N - 1)
        if (d[0][i] < d[0][tmp])
            tmp = i;
    location[tmp] = first + d[0][tmp];
    stype[tmp] = 2;

    // dbg(tmp);
    rep(i, 1, N - 1) if (i != tmp)
        if (d[tmp][i] == d[tmp][0] + d[0][i]) {
            location[i] = first + d[0][i];
            stype[i] = 2;
        }
        else {
            location[i] = location[tmp] - d[i][tmp];
            stype[i] = 1;
        }
    // print(location);
}

Compilation message (stderr)

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:48:25: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   48 |     rep(i, 1, N - 1) if (i != tmp)
      |                         ^
rail.cpp:24:10: warning: variable 'print' set but not used [-Wunused-but-set-variable]
   24 |     auto print = [&](int a[]) -> void {
      |          ^~~~~

• Subtask 1: 8 / 8
• Subtask 2: 22 / 22
• Subtask 3: 0 / 26
• Subtask 4: 0 / 44