Submission #2195776
Source Code Expand
#include <bits/stdc++.h> using namespace std; long long N,L,a[100009],b[100009],c[100009],S; long long solve_naive(vector<long long>&A,vector<long long>&B,vector<long long>&C){ long long cx=0,cost=0; for(int i=0;i<B.size();i++){ for(int j=cx;j<C.size();j++){ if(C[cx]>=B[i]){ C[cx]-=B[i];cost+=llabs(A[i]-A[cx])*B[i]; B[i]=0;break; } else{ B[i]-=C[cx];cost+=llabs(A[i]-A[cx])*C[cx]; C[cx]=0;cx++; } } } //cout<<cost<<endl; return cost; } long long solve(long long pos){ long long I=(pos+S*2)/S;I-=2; pos-=I*S;I*=L; long long G=0; vector<tuple<long long,long long,long long>>T; for(int i=0;i<N;i++){ if(G+c[i]>=pos) { T.push_back(make_tuple(I+a[i],0LL,G+c[i]-pos)); long long J=I; for(int j=i+1;j<N+i;j++){ if(j==N) J+=L; T.push_back(make_tuple(J+a[j%N],0LL,c[j%N])); } T.push_back(make_tuple(I+L+a[i],0LL,pos-G)); for(int j=0;j<N;j++){ T.push_back(make_tuple(a[j],b[j],0LL)); } break; } G+=c[i]; } vector<int>X; for(int i=0;i<T.size();i++) X.push_back(get<0>(T[i])); sort(X.begin(),X.end()); X.erase(unique(X.begin(),X.end()),X.end()); vector<long long>A(X.size(),0),B(X.size(),0),C(X.size(),0); for(int i=0;i<X.size();i++) A[i]=X[i]; for(int i=0;i<T.size();i++){ long long pos1=lower_bound(X.begin(),X.end(),(int)get<0>(T[i]))-X.begin(); B[pos1]+=get<1>(T[i]); C[pos1]+=get<2>(T[i]); } //cout<<endl; //cout<<"pos = "<<pos<<endl; //cout<<I<<" "<<S<<endl; /*for(int i=0;i<A.size();i++){ cout<<A[i]<<" "<<B[i]<<" "<<C[i]<<endl; }*/ return solve_naive(A,B,C); } int main(){ cin>>N>>L; for(int i=0;i<N;i++){ scanf("%lld%lld%lld", &a[i], &b[i], &c[i]);S+=b[i]; } long long L=-S,R=S+1,M,ans=(1LL<<60); for(int i=0;i<38;i++){ M=(L+R)/2; long long I1=solve(M); long long I2=solve(M+1); ans=min(ans,min(I1,I2)); if(I1>I2) L=M; else R=M; } cout<<ans<<endl; return 0; }
Submission Info
Submission Time | |
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Task | D - タクシー |
User | E869120 |
Language | C++14 (Clang 3.8.0) |
Score | 0 |
Code Size | 1976 Byte |
Status | CE |
Compile Error
./Main.cpp:1:10: fatal error: 'bits/stdc++.h' file not found #include <bits/stdc++.h> ^ 1 error generated.