Submission #234206

#TimeUsernameProblemLanguageResultExecution timeMemory
234206pere_gilHorses (IOI15_horses)C++14
17 / 100
19 ms8576 KiB
#include <iostream> #include "horses.h" using namespace std; int moe=1000000007; int ja[5000]; int x[5000]; int y[5000]; int n; int big=0; int init(int N, int X[], int Y[]) { /* por 17 pts int big=0; int ja[N]; ja[0]=X[0]; for(int i=1;i<N;i++){ ja[i]=ja[i-1]*X[i]; } for(int i=0;i<N;i++) big=max(big, ja[i]*Y[i]); return big; */ for(int i=0;i<N;i++){ x[i]=X[i]; y[i]=Y[i]; } n=N; ja[0]=x[0]; for(int i=1;i<n;i++) ja[i]=x[i]*ja[i-1]%moe; for(int i=0;i<n;i++) big=max(big, (ja[i]*y[i])%moe); return big; } int updateX(int pos, int val){ x[pos]=val; for(int i=pos;i<n;i++) ja[i]=x[i]*ja[i-1]%moe; //actualisar; for(int i=pos;i<n;i++) big=max(big, (ja[i]*y[i])%moe); return big; } int updateY(int pos, int val){ y[pos]=val; for(int i=pos;i<n;i++) big=max(big, (ja[i]*y[i])%moe); return big; }
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