oj.uz

Submission #106036

# Submission time Handle Problem Language Result Execution time Memory
106036 2019-04-16T08:28:22 Z username Travelling Merchant (APIO17_merchant) C++14
0 / 100
 142 ms 2296 KB 
#pragma GCC optimize("O3")
#include<stdint.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#include<ext/rope>
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define VIS(it,con) for(auto it=con.begin();it!=con.end();++it)
#define pob pop_back
#define pf push_front
#define pof pop_front
#define MIN(x,y) (x=min(x,(y)))
#define MAX(x,y) (x=max(x,(y)))
#define mid ((l+r)/2)
#define lch (idx*2+1)
#define rch (idx*2+2)
/*****************************************************************************/
#include<bits/stdc++.h>
#define int int_fast64_t
using namespace std;
typedef pair<int,int> pii;
typedef vector<int> VI;
#define REP(i,j,k) for(register int i=(j);i<(k);++i)
#define RREP(i,j,k) for(register int i=(j)-1;i>=(k);--i)
#define ALL(a) a.begin(),a.end()
#define MST(a,v) memset(a,(v),sizeof a)
#define pb push_back
#define F first
#define S second
#define endl '\n'
																#define __debug
#ifdef __debug
	#define IOS (void)0
	#define de(...) cerr<<__VA_ARGS__
	#define ar(a,s,t) {REP(__i,s,t)de(min((int)1e9-1,a[__i])<<' ');de(endl);}
#else
	#define IOS cin.tie(0),cout.tie(0),ios_base::sync_with_stdio(false)
	#define de(...) (void)0
	#define ar(...) (void)0
#endif
/***********************************default***********************************/
const int maxn=109,maxm=99e2+9,maxk=1e3+9,inf=1ll<<50;
int n,m,k,b[maxn][maxk],s[maxn][maxk],t[maxn][maxn],c[maxn][maxn],d[maxn][maxn];
 
bool check(int x){
	REP(i,0,n)REP(j,0,n)d[i][j]=x*t[i][j]-c[i][j];
	REP(p,0,n)REP(i,0,n)REP(j,0,n)MIN(d[i][j],d[i][p]+d[p][j]);
	REP(i,0,n)if(d[i][i]<=0)return 1;
	return 0;
}
 
main(){
	IOS;
	cin>>n>>m>>k;
	REP(i,0,n)REP(j,0,k){
		cin>>b[i][j]>>s[i][j];
		if(b[i][j]<0)b[i][j]=inf;
		if(s[i][j]<0)s[i][j]=-inf;
	}
	REP(i,0,n)REP(j,0,n)t[i][j]=inf,c[i][j]=0;
	REP(i,0,m){
		int v,w,tt;cin>>v>>w>>tt,--v,--w;
		t[v][w]=tt;
	}
	REP(p,0,n)REP(i,0,n)REP(j,0,n)MIN(t[i][j],t[i][p]+t[p][j]);
	REP(p,0,k)REP(i,0,n)REP(j,0,n)MAX(c[i][j],s[j][p]-b[i][p]);
	int l=0,r=1e11L+9;
	while(l+1<r){
		if(check(mid))l=mid;
		else r=mid;
	}
	cout<<l<<endl;
}

Compilation message

merchant.cpp:52:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 119 ms 2296 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 8 ms 896 KB Output is correct
3 Correct 13 ms 896 KB Output is correct
4 Correct 9 ms 896 KB Output is correct
5 Correct 10 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Incorrect 8 ms 896 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 1632 KB Output is correct
2 Correct 142 ms 2260 KB Output is correct
3 Correct 48 ms 1408 KB Output is correct
4 Incorrect 56 ms 1612 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 8 ms 896 KB Output is correct
3 Correct 13 ms 896 KB Output is correct
4 Correct 9 ms 896 KB Output is correct
5 Correct 10 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Incorrect 8 ms 896 KB Output isn't correct
8 Halted 0 ms 0 KB -