Submission #307745

#	Time	Username	Problem	Language	Result	Execution time	Memory
307745		cheetose	Carnival Tickets (IOI20_tickets)	C++17	12 / 100	136 ms	6776 KiB

tickets

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<db> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 1000000007;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };
#include "tickets.h"
int n,m,kk;
/*void allocate_tickets(vector<Vi> &s){
	int n=s.size(),m=s[0].size();
	fup(i,0,n-1,1){
		fup(j,0,m-1,1){
			printf("%d ",s[i][j]);
		}
		puts("");
	}
}*/
Pi p[80];
int cnt[80];
ll d[80][3201];
ll go(int N,int M,vector<Vi> &x){
	if(M>n*kk/2)return -INF;
	if(N==n){
		if(M==n*kk/2)return 0;
		return -INF;
	}
	ll &ret=d[N][M];
	if(ret!=-INF-5)return ret;
	ret=-INF;
	ll s=0;
	fup(i,0,kk-1,1)s+=x[N][m-1-i];
	ret=max(ret,s+go(N+1,M,x));
	fup(i,0,kk-1,1){
		s-=x[N][i]+x[N][m-kk+i];
		ret=max(ret,s+go(N+1,M+i+1,x));
	}
	return ret;
}
void track(int N,int M,vector<Vi> &x){
	if(N==n)return;
	ll s=0;
	fup(i,0,kk-1,1)s+=x[N][m-1-i];
	if(go(N,M,x)==s+go(N+1,M,x)){
		p[N].Y=m-kk;
		track(N+1,M,x);
		return;
	}
	fup(i,0,kk-1,1){
		s-=x[N][i]+x[N][m-kk+i];
		if(go(N,M,x)==s+go(N+1,M+i+1,x)){
			cnt[N]=i+1;
			p[N].Y=m-kk+i+1;
			track(N+1,M+i+1,x);
			return;
		}
	}
}
ll find_maximum(int k, vector<Vi> x){
	kk=k,n=x.size(),m=x[0].size();
	fup(i,0,79,1)fup(j,0,3200,1)d[i][j]=-INF-5;
	vector<Vi> s(n,Vi(m,-1));
	ll res=go(0,0,x);
	track(0,0,x);
	fup(K,0,k-1,1){
		VPi vv(n);
		fup(i,0,n-1,1)vv[i]=mp(cnt[i],i);
		sort(ALL(vv));
		fup(i,0,n/2-1,1){
			int ii=vv[i].Y;
			s[ii][p[ii].Y++]=K;
		}
		fup(i,n/2,n-1,1){
			int ii=vv[i].Y;
			s[ii][p[ii].X++]=K;
			cnt[ii]--;
		}
	}
	allocate_tickets(s);
	return res;
}/*
int main() {
	int n,m,k;
	scanf("%d%d%d",&n,&m,&k);
	vector<Vi> x(n,Vi(m));
	fup(i,0,n-1,1)fup(j,0,m-1,1)scanf("%d",&x[i][j]);
	printf("%lld\n",find_maximum(k,x));
}*/

Compilation message (stderr)

tickets.cpp: In function 'll go(int, int, std::vector<std::vector<int> >&)':
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:65:2: note: in expansion of macro 'fup'
   65 |  fup(i,0,kk-1,1)s+=x[N][m-1-i];
      |  ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:67:2: note: in expansion of macro 'fup'
   67 |  fup(i,0,kk-1,1){
      |  ^~~
tickets.cpp: In function 'void track(int, int, std::vector<std::vector<int> >&)':
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:76:2: note: in expansion of macro 'fup'
   76 |  fup(i,0,kk-1,1)s+=x[N][m-1-i];
      |  ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:82:2: note: in expansion of macro 'fup'
   82 |  fup(i,0,kk-1,1){
      |  ^~~
tickets.cpp: In function 'll find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:94:2: note: in expansion of macro 'fup'
   94 |  fup(i,0,79,1)fup(j,0,3200,1)d[i][j]=-INF-5;
      |  ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:94:15: note: in expansion of macro 'fup'
   94 |  fup(i,0,79,1)fup(j,0,3200,1)d[i][j]=-INF-5;
      |               ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'K' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:98:2: note: in expansion of macro 'fup'
   98 |  fup(K,0,k-1,1){
      |  ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:100:3: note: in expansion of macro 'fup'
  100 |   fup(i,0,n-1,1)vv[i]=mp(cnt[i],i);
      |   ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:102:3: note: in expansion of macro 'fup'
  102 |   fup(i,0,n/2-1,1){
      |   ^~~
tickets.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
tickets.cpp:106:3: note: in expansion of macro 'fup'
  106 |   fup(i,n/2,n-1,1){
      |   ^~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 12 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10