/// In The Name Of God
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")
#include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define pp pop_back
#define mp make_pair
#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()
#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define nl '\n'
#define ioi exit(0);
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int N = (int)150 + 7, inf = (int)1e9 + 7, mod = (int)1e9 + 7;
const ll linf = (ll)1e18 + 7;
const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1}, dy[] = {0, 1, 0, -1, 1, -1, 1, -1};
using namespace std;
int n, k;
vector <int> g[N];
bool ok[N][N];
int dp[N][N][N][2];
int calc(int v, int l, int r, int type) {
if (~dp[v][l][r][type]) return dp[v][l][r][type];
int res = 0;
for (auto to : g[v]) {
if (to == l || to == r) continue;
if (type) {
if (l < to && to < r) {
res = max(res, max(calc(to, l, to, type), calc(to, to, r, type)) + 1);
}
}
}
return dp[v][l][r][type] = res;
}
int main() {
#ifdef IOI2018
freopen ("in.txt", "r", stdin);
#endif
scanf ("%d%d", &n, &k);
assert(0 <= k && k <= 1);
assert(n <= 150);
for (int i = 1; i <= n; i++) {
int to;
while (scanf ("%d", &to) && to) {
ok[i][to] = 1;
g[i].pb(to);
}
}
if (n == 1) {
assert(0);
printf ("0\n1");
ioi
}
if (!k) {
int mx = -inf, opt = -1;
memset(dp, -1, sizeof(dp));
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
if (i == j || !ok[i][j]) continue;
int now = calc(j, min(i, j), max(i, j), 1) + 1;
if (now > mx) {
mx = now;
opt = i;
}
}
}
printf ("%d\n%d", mx, opt);
ioi
}
ioi
}
Compilation message
race.cpp: In function 'int main()':
race.cpp:56:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf ("%d%d", &n, &k);
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
32276 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
32276 KB |
Unexpected end of file - int32 expected |
| 3 |
Incorrect |
0 ms |
32276 KB |
Unexpected end of file - int32 expected |
| 4 |
Incorrect |
0 ms |
32276 KB |
Unexpected end of file - int32 expected |
| 5 |
Incorrect |
0 ms |
32276 KB |
Output isn't correct |
| 6 |
Incorrect |
0 ms |
32276 KB |
Unexpected end of file - int32 expected |
| 7 |
Incorrect |
3 ms |
32276 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
32276 KB |
Unexpected end of file - int32 expected |
| 9 |
Incorrect |
9 ms |
32276 KB |
Output isn't correct |
| 10 |
Correct |
9 ms |
32408 KB |
Output is correct |
| 11 |
Incorrect |
6 ms |
32276 KB |
Output isn't correct |
| 12 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 13 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 14 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 15 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 16 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 17 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 18 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 19 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
| 20 |
Runtime error |
0 ms |
32280 KB |
Execution killed because of forbidden syscall gettid (186) |
