Submission #1087370
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pdd pair<double,double>
#define X first
#define Y second
#define REP(i,a) for(int i=0;i<a;++i)
#define REPP(i,a,b) for(int i=a;i<b;++i)
#define FILL(a,x) memset(a,x,sizeof(a))
#define foreach( gg,itit ) for( typeof(gg.begin()) itit=gg.begin();itit!=gg.end();itit++ )
#define mp make_pair
#define pb push_back
#define all(s) s.begin(),s.end()
#define present(c,x) ((c).find(x) != (c).end())
const double EPS = 1e-8;
const int mod = 1e9+7;
const int N = 1e6+10;
const ll INF = 1e18;
//#define DEBUG
ll power(ll x,ll y){
ll t=1;
while(y>0){
if(y%2) y-=1,t=t*x%mod;
else y/=2,x=x*x%mod;
}
return t;
}
#ifdef DEBUG
#define dprintf(fmt,...) fprintf(stderr,fmt,__VA_ARGS__)
#else
#define dprintf(fmt,...)
#endif
vector<pii> arr;
int cmp(pii a,pii b){
return a.Y-a.X<b.Y-b.X;
}
ll dp[5005][5005];
int main(){
int n; scanf("%d",&n);
if(n==1){
printf("0\n"); exit(0);
}
REP(i,n){
pii z; scanf("%d%d",&z.X,&z.Y); z.X=-z.X; arr.pb(z);
}
sort(all(arr),cmp);
reverse(all(arr));
int fl=1;
REP(i,n-1) if(arr[i].X-arr[i].Y!=arr[i+1].X-arr[i+1].Y) fl=0;
if(fl){
sort(all(arr));
swap(arr[n/2],arr[n-1]);
}
REP(i,n+1) REP(j,n+1) dp[i][j]=INF;
dp[0][0]=0;
ll lk = -arr[n-1].X,rk=arr[n-1].Y;
ll ans=INF;
REP(i,n){
ll ls = arr[i].X,rs=arr[i].Y;
ll dis = rs-ls;
// printf("%lld %lld\n",lk,rk);
REP(j,i+1)if(dp[i][j]<INF){
// printf("%d %d %lld\n",i,j,dp[i][j]);
dp[i+1][j]=min(dp[i+1][j],dp[i][j]+(i-j)*dis+lk+rs);
dp[i+1][j+1]=min(dp[i+1][j+1],dp[i][j]+j*dis+rk-ls);
}
}
REP(i,n) ans=min(ans,dp[n-1][i]);
printf("%lld\n",ans);
return 0;
}
Submission Info
Submission Time
2017-01-30 05:23:01+0900
Task
F - Intervals
User
alecsyde
Language
C++14 (GCC 5.4.1)
Score
0
Code Size
1837 Byte
Status
WA
Exec Time
275 ms
Memory
195840 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:43:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
int n; scanf("%d",&n);
^
./Main.cpp:48:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
pii z; scanf("%d%d",&z.X,&z.Y); z.X=-z.X; arr.pb(z);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 1000
Status
Set Name
Test Cases
Sample
example0.txt, example1.txt
All
000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, example0.txt, example1.txt
Case Name
Status
Exec Time
Memory
000.txt
AC
274 ms
195840 KB
001.txt
AC
62 ms
43264 KB
002.txt
AC
272 ms
195840 KB
003.txt
WA
226 ms
164352 KB
004.txt
AC
273 ms
195840 KB
005.txt
AC
118 ms
84352 KB
006.txt
AC
273 ms
195840 KB
007.txt
AC
149 ms
107904 KB
008.txt
AC
272 ms
195840 KB
009.txt
AC
35 ms
23296 KB
010.txt
AC
273 ms
195840 KB
011.txt
AC
130 ms
93440 KB
012.txt
AC
273 ms
195840 KB
013.txt
AC
30 ms
19584 KB
014.txt
AC
273 ms
195840 KB
015.txt
AC
63 ms
43776 KB
016.txt
AC
272 ms
195840 KB
017.txt
AC
221 ms
161280 KB
018.txt
AC
273 ms
195840 KB
019.txt
AC
143 ms
102656 KB
020.txt
AC
3 ms
256 KB
021.txt
AC
3 ms
256 KB
022.txt
AC
273 ms
195840 KB
023.txt
AC
274 ms
195840 KB
024.txt
AC
274 ms
195840 KB
025.txt
AC
271 ms
195840 KB
026.txt
AC
275 ms
195840 KB
027.txt
AC
273 ms
195840 KB
028.txt
AC
272 ms
195840 KB
029.txt
AC
273 ms
195840 KB
030.txt
AC
272 ms
195840 KB
031.txt
AC
275 ms
195840 KB
032.txt
AC
272 ms
195840 KB
033.txt
AC
274 ms
195840 KB
034.txt
AC
274 ms
195840 KB
035.txt
AC
274 ms
195840 KB
036.txt
AC
273 ms
195840 KB
037.txt
AC
273 ms
195840 KB
038.txt
AC
273 ms
195840 KB
039.txt
AC
273 ms
195840 KB
040.txt
AC
273 ms
195840 KB
041.txt
AC
274 ms
195840 KB
042.txt
AC
273 ms
195840 KB
example0.txt
AC
3 ms
256 KB
example1.txt
AC
3 ms
384 KB