#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#pragma region dalykai
using p32 = pair<int, int>;
using p32u = pair<uint32_t, uint32_t>;
using p64 = pair<int64_t, int64_t>;
using p64u = pair<uint64_t, uint64_t>;
using vi16 = vector<int16_t>;
using vi16u = vector<uint16_t>;
using vi32 = vector<int>;
using vi32u = vector<uint32_t>;
using vi64 = vector<int64_t>;
using vi64u = vector<uint64_t>;
using vp32 = vector<p32>;
using vp32u = vector<p32u>;
using vp64 = vector<p64>;
using vp64u = vector<p64u>;
using vvi32 = vector<vi32>;
using vvi32u = vector<vi32u>;
using vvi64 = vector<vi64>;
using vvi64u = vector<vi64u>;
using vvp32 = vector<vp32>;
using vvp32u = vector<vp32u>;
using vvp64 = vector<vp64>;
using vvp64u = vector<vp64u>;
using pf32 = pair<float, float>;
using pf64 = pair<double, double>;
using pf80 = pair<long double, long double>;
using vf32 = vector<float>;
using vf64 = vector<double>;
using vf80 = vector<long double>;
using vpf32 = vector<pf32>;
using vpf64 = vector<pf64>;
using vpf80 = vector<pf80>;
using vvf32 = vector<vf32>;
using vvf64 = vector<vf64>;
using vvf80 = vector<vf80>;
using vvpf32 = vector<vpf32>;
using vvpf64 = vector<vpf64>;
using vvpf80 = vector<vpf80>;
template <typename key, typename val>
using ord_map = tree<key, val, less<key>, rb_tree_tag,
tree_order_statistics_node_update>;
template <typename key>
using ord_set = tree<key, null_type, less<key>, rb_tree_tag,
tree_order_statistics_node_update>;
const int BUF_SZ = 1 << 15;
inline namespace fast_in
{
char buf[BUF_SZ];
int pos;
int len;
char next_char(FILE *f)
{
if (pos == len)
{
pos = 0;
len = (int)fread(buf, 1, BUF_SZ, f);
if (!len)
{
return EOF;
}
}
return buf[pos++];
}
int read_int(FILE *f)
{
int x;
char ch;
int sgn = 1;
while (!isdigit(ch = next_char(f)))
{
if (ch == '-')
{
sgn *= -1;
}
}
x = ch - '0';
while (isdigit(ch = next_char(f)))
{
x = x * 10 + (ch - '0');
}
return x * sgn;
}
}
/**
* @brief gale programos flush_out kviest!!
*/
inline namespace fast_out
{
char buf[BUF_SZ];
int pos;
void flush_out(FILE *f)
{
fwrite(buf, 1, pos, f);
pos = 0;
}
void write_char(char c, FILE *f)
{
if (pos == BUF_SZ)
{
flush_out(f);
}
buf[pos++] = c;
}
void write_int(int x, FILE *f)
{
static char num_buf[100];
if (x < 0)
{
write_char('-', f);
x *= -1;
}
int len = 0;
for (; x >= 10; x /= 10)
{
num_buf[len++] = (char)('0' + (x % 10));
}
write_char((char)('0' + x), f);
while (len)
{
write_char(num_buf[--len], f);
}
write_char('\n', f);
}
}
#pragma endregion
int main()
{
#ifndef _AAAAAAAAA
ios_base::sync_with_stdio(false);
cin.tie(0);
#else
freopen("flight.in", "r", stdin);
#ifndef __linux__
atexit([]()
{
freopen("con", "r", stdin);
system("pause"); });
#endif
#endif
int v, e;
cin >> v >> e;
vi64 sum(v);
vvp32 adj(v), weight(v);
for (int i = 0; i < e; i++)
{
int a, b, w;
cin >> a >> b >> w;
a--;
b--;
sum[a] += w;
sum[b] += w;
adj[a].emplace_back(a, w);
weight[b].emplace_back(b, w);
weight[a].emplace_back(w, a);
weight[b].emplace_back(w, b);
}
for (int i = 0; i < v; i++)
{
sort(adj[i].begin(), adj[i].end());
sort(weight[i].rbegin(), weight[i].rend());
}
int64_t result = *max_element(sum.begin(), sum.end());
for (int i = 0; i < v; i++)
{
if (adj[i].size() < 2)
{
continue;
}
int a = weight[i][0].second, b = weight[i][1].second;
p32 __b = {b, 0};
auto it = lower_bound(adj[a].begin(), adj[a].end(), __b);
if (it == adj[a].end())
{
continue;
}
int64_t cur = (int64_t)it->second + weight[i][0].first + weight[i][1].first;
result = max(result, cur);
}
cout << result << '\n';
return 0;
}
Compilation message
pigus_skrydziai.cpp:8: warning: ignoring '#pragma region dalykai' [-Wunknown-pragmas]
8 | #pragma region dalykai
|
pigus_skrydziai.cpp:151: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas]
151 | #pragma endregion
|
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
139 ms |
32200 KB |
Output is correct |
| 2 |
Incorrect |
303 ms |
39064 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
139 ms |
32200 KB |
Output is correct |
| 2 |
Incorrect |
303 ms |
39064 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
