Submission #699460

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
699460	2023-02-17 03:22:17	He_Huanglu	Swapping Cities (APIO20_swap)	C++17	0 / 100	1 ms	468 KiB

swap

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#include "swap.h"
#include <bits/stdc++.h>
#define ii pair<int, int>
#define iii pair<int, ii>
#define fi first
#define se second
using namespace std;
const int N = 2e5 + 5;
int n, m, par[N], p1[N], p2[N], past[N], cur[N];
vector <iii> edg;
int root(int u)
{
    return (par[u] < 0) ? u : par[u] = root(par[u]);
}
bool check(int u, int v, int mid)
{
    while (par[u] > 0 && past[u] <= mid) u = par[u];
    while (par[v] > 0 && past[v] <= mid) v = par[v];
    if(u != v) return 0;
    if(cur[u] && cur[u] <= mid) return 1;
    return 0;
}
void join(int u, int v, int w)
{
    u = root(u), v = root(v);
 
 
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Compilation message (stderr)

swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:78:49: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
   78 |     int l = 1, r = edg[edg.size() - 1].fi, mid, ans;
      |                                                 ^~~
swap.cpp:85:1: warning: no return statement in function returning non-void [-Wreturn-type]
   85 | }
      | ^

• Subtask 1: 0 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27