제출 #743778

#제출 시각아이디문제언어결과실행 시간메모리
743778Mauve여행하는 상인 (APIO17_merchant)C++14
12 / 100
18 ms3148 KiB
#include<bits/stdc++.h> using namespace std; #define ll long long #define INF 1e18 #define buy first #define sell second #define list shaa ll n,m,l,r,i,j,ii,jj,k,dp[101][101],ans; pair<ll,ll> list[101][1001]; int main(){ cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cin>>n>>m>>k; for(i=1;i<=n;i++) for(j=1;j<=k;j++){ cin>>l>>r; list[i][j]={l,r}; } for(i=1;i<=n;i++) for(j=1;j<=n;j++) dp[i][j]=INF; for(i=1;i<=m;i++){ cin>>l>>r>>jj; dp[l][r]=min(dp[l][r],jj); } for(ii=1;ii<=n;ii++) for(i=1;i<=n;i++) for(j=1;j<=n;j++) dp[i][j]=min(dp[i][j],dp[i][ii]+dp[ii][j]); for(ii=1;ii<=k;ii++) for(i=2;i<=n;i++) if(list[1][ii].buy!=-1 && list[i][ii].sell!=-1) ans=max(ans,(list[i][ii].sell-list[1][ii].buy)/(dp[1][i]+dp[i][1])); cout<<ans; }
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