제출 #1273789

#제출 시각아이디문제언어결과실행 시간메모리
1273789Petrix말 (IOI15_horses)C++20
34 / 100
1596 ms12176 KiB
#include "horses.h" #include<iostream> using namespace std; #pragma GCC optimize("O3,inline") #define MOD 1000000007 int n; long long x[600001]; long long y[600001]; int calc(){ long long ci,prod,i,rasp=1,max1; ci=n;prod=y[n]*x[n]; for(i=n-1;i>=1;i--){ if(prod>1e9) break; if(y[i]>prod){ ci=i;prod=y[i]; } prod*=x[i]; } for(i=1;i<=ci;i++){ rasp=(rasp*x[i])%MOD; } rasp=(rasp*y[ci])%MOD; return rasp; } int init(int N,int X[],int Y[]){ int i; n=N; for(i=1;i<=n;i++){ x[i]=X[i-1]; y[i]=Y[i-1]; } return calc(); } int updateX(int pos,int val){ x[pos+1]=val; return calc(); } int updateY(int pos,int val){ y[pos+1]=val; return calc(); }
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