#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define ppb pop_back
#define umax(x,y) x=max(x,y)
#define umin(x,y) x=min(x,y)
#define ll long long
#define ii pair<int,int>
#define iii pair<ii,int>
#define iiii pair<ii,ii>
#define sz(x) ((int) x.size())
#define orta ((bas+son)>>1)
#define all(x) x.begin(),x.end()
#define dbgs(x) cerr<<(#x)<<" --> "<<(x)<<" "
#define dbg(x) cerr<<(#x)<<" --> "<<(x)<<endl;getchar()
#define pw(x) (1<<(x))
#define inf 2000000000
#define MOD 1000000007
#define N 505
#define MAX 5000000
#define LOG 100
#define KOK 333
using namespace std;
int n,k,x;
int ar[2*N],a[N][N],dp[2*N][2*N][2];
void f_1() {
}
void f_0() {
int ans=-1,tut;
/*for(int i=1;i<=2*n;i++,puts("")) {
for(int j=1;j<=2*n;j++) {
printf("%d ",dp[i][j]);
}
}*/
for(int i=1;i<=n;i++) {
if(dp[i][i+n-1][0]>ans) {
ans=dp[i][i+n-1][0];
tut=i;
}
}
printf("%d\n%d\n",ans,tut);
}
void do_1() {
}
void do_0() {
for(int len=2;len<=n;len++) {
for(int fr=0;fr<2;fr++) {
for(int i=1;i<=2*n;i++) {
int beg=i-len+1;
int en=i+len-1;
if(beg>=1) {
for(int j=beg+1;j<i;j++) {
if(a[ar[i]][ar[j]]) umax(dp[i][beg][fr],max(dp[j][beg][0],dp[j][i][1])+1);
}
if(a[ar[i]][ar[beg]] && !fr) {
umax(dp[i][beg][0],1);
for(int j=beg+1;j<i;j++) {
if(a[ar[beg]][ar[j]]) umax(dp[i][beg][0],max(dp[j][beg][1],dp[j][i][0])+2);
}
}
}
if(en<=2*n) {
for(int j=i+1;j<en;j++) {
if(a[ar[i]][ar[j]]) umax(dp[i][en][fr],max(dp[j][en][0],dp[j][i][1])+1);
}
if(a[ar[i]][ar[en]] && !fr) {
umax(dp[i][en][0],1);
for(int j=i+1;j<en;j++) {
if(a[ar[en]][ar[j]]) umax(dp[i][en][0],max(dp[j][en][1],dp[j][i][0])+2);
}
}
}
}
}
}
}
int main() {
//freopen("input.txt","r",stdin);
scanf("%d %d",&n,&k);
for(int i=1;i<=n;i++) {
do {
scanf("%d",&x);
if(x==0) break ;
a[i][x]=1;
} while(1);
}
for(int i=1;i<=n;i++) ar[i]=ar[i+n]=i;
do_0();
do_1();
if(k==0) f_0();
else f_1();
}
Compilation message
race.cpp: In function 'int main()':
race.cpp:132:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&n,&k);
~~~~~^~~~~~~~~~~~~~~
race.cpp:138:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&x);
~~~~~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Incorrect |
4 ms |
628 KB |
Unexpected end of file - int32 expected |
| 3 |
Incorrect |
3 ms |
692 KB |
Unexpected end of file - int32 expected |
| 4 |
Incorrect |
3 ms |
844 KB |
Unexpected end of file - int32 expected |
| 5 |
Incorrect |
5 ms |
1140 KB |
Output isn't correct |
| 6 |
Incorrect |
5 ms |
1236 KB |
Unexpected end of file - int32 expected |
| 7 |
Incorrect |
12 ms |
1360 KB |
Output isn't correct |
| 8 |
Incorrect |
8 ms |
1488 KB |
Unexpected end of file - int32 expected |
| 9 |
Incorrect |
19 ms |
1636 KB |
Output isn't correct |
| 10 |
Incorrect |
18 ms |
1760 KB |
Output isn't correct |
| 11 |
Incorrect |
27 ms |
1760 KB |
Output isn't correct |
| 12 |
Incorrect |
96 ms |
3552 KB |
Unexpected end of file - int32 expected |
| 13 |
Incorrect |
240 ms |
5620 KB |
Unexpected end of file - int32 expected |
| 14 |
Incorrect |
456 ms |
7720 KB |
Output isn't correct |
| 15 |
Incorrect |
1186 ms |
9672 KB |
Unexpected end of file - int32 expected |
| 16 |
Incorrect |
1396 ms |
9672 KB |
Unexpected end of file - int32 expected |
| 17 |
Incorrect |
1116 ms |
9784 KB |
Unexpected end of file - int32 expected |
| 18 |
Incorrect |
810 ms |
9784 KB |
Output isn't correct |
| 19 |
Incorrect |
1696 ms |
9784 KB |
Unexpected end of file - int32 expected |
| 20 |
Incorrect |
1604 ms |
9784 KB |
Unexpected end of file - int32 expected |
