Submission #1310188

#TimeUsernameProblemLanguageResultExecution timeMemory
1310188jumpJakarta Skyscrapers (APIO15_skyscraper)C++20
0 / 100
1 ms572 KiB
#include <bits/stdc++.h> int b[30010]; int p[30010]; int adj[2005][2005]; int main() { int n,m; std::cin >> n >> m; int s,e; for(int i=0;i<m;i++){ std::cin >> b[i] >> p[i]; if(i==0)s=b[i]; else if(i==1)e=b[i]; } for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ adj[i][j]=1e9; } } for(int i=0;i<m;i++){ for(int j=0;j<n;j++){ if(std::abs(j-b[i])%p[i]==0){ adj[b[i]][j]=std::min(adj[b[i]][j],std::abs(j-b[i])/p[i]); } } } for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ for(int k=0;k<n;k++){ adj[i][j]=std::min(adj[i][j],adj[i][k]+adj[k][j]); } } } // for(int j=0;j<n;j++){ // if(std::abs(j-b[1])%p[1]==0){ // adj[s][e]=std::min(adj[s][e],adj[s][j]+std::abs(j-b[1])/p[1]); // } // } // for(int i=0;i<n;i++){ // for(int j=0;j<n;j++){ // std::cout << adj[i][j] << ' '; // }std::cout << '\n'; // } std::cout << s << e; if(adj[s][e]==1e9)adj[s][e]=-1; std::cout << adj[s][e]; }
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