Rock-Paper-Scissors
Nikephoros and Polycarpus play rock-paper-scissors. The loser gets pinched (not too severely!).
Let us remind you the rules of this game. Rock-paper-scissors is played by two players. In each round the players choose one of three items independently from each other. They show the items with their hands: a rock, scissors or paper. The winner is determined by the following rules: the rock beats the scissors, the scissors beat the paper and the paper beats the rock. If the players choose the same item, the round finishes with a draw.
Nikephoros and Polycarpus have played n rounds. In each round the winner gave the loser a friendly pinch and the loser ended up with a fresh and new red spot on his body. If the round finished in a draw, the players did nothing and just played on.
Nikephoros turned out to have worked out the following strategy: before the game began, he chose some sequence of items A = (a1, a2, ..., am), and then he cyclically showed the items from this sequence, starting from the first one. Cyclically means that Nikephoros shows signs in the following order: a1, a2, ..., am, a1, a2, ..., am, a1, ... and so on. Polycarpus had a similar strategy, only he had his own sequence of items B = (b1, b2, ..., bk).
Determine the number of red spots on both players after they've played n rounds of the game. You can consider that when the game began, the boys had no red spots on them.
Input
The first line contains integer n (1 ≤ n ≤ 2·109) — the number of the game's rounds.
The second line contains sequence A as a string of m characters and the third line contains sequence B as a string of k characters (1 ≤ m, k ≤ 1000). The given lines only contain characters "R", "S" and "P". Character "R" stands for the rock, character "S" represents the scissors and "P" represents the paper.
Output
Print two space-separated integers: the numbers of red spots Nikephoros and Polycarpus have.
Sample Input
7
RPS
RSPP
3 2
Hint
In the first sample the game went like this:
- R - R. Draw.
- P - S. Nikephoros loses.
- S - P. Polycarpus loses.
- R - P. Nikephoros loses.
- P - R. Polycarpus loses.
- S - S. Draw.
- R - P. Nikephoros loses.
Thus, in total Nikephoros has 3 losses (and 3 red spots), and Polycarpus only has 2.
题意:
给你两个人石头剪刀布的出手顺序,且按照这个顺序玩n轮,问你 最后 第一个人输了几把,第二个人输了几把
题解:
求出长度的lcm ,就好做了
#include<bits/stdc++.h> #include <iostream> #include <cstdio> #include <cmath> #include <cstring> #include <algorithm> using namespace std ; typedef long long ll; const int N=5500; const int inf = 899999; int check(char a,char b) { if(a == b) return 0; else if(a == 'R' && b == 'S') return 1; else if(a == 'S' && b == 'P') return 1; else if(a == 'P' && b == 'R') return 1; else return -1; } char a[N],b[N]; int h[1001000],g[1001000]; int main() { int n; scanf("%d%s%s",&n,a,b); int l = strlen(a), r = strlen(b); int d = __gcd(l,r); int lcm = l * r / d; int cnt = 0, tmp = 0; ll ans = 0 , sum = 0; for(int i = 1; i <= lcm; i++) { int now = check(a[cnt],b[tmp]); if(now == 1) ans++; else if(now == -1) sum++; tmp++,cnt++; if(tmp == r) tmp = 0; if(cnt == l) cnt = 0; h[i] = ans; g[i] = sum; } sum *= (n/lcm); ans *= (n/lcm); sum += g[n%lcm]; ans += h[n%lcm]; printf("%I64d %I64d ",sum,ans); return 0; }