Would you please explain what is wrong with the following solution for Problem
RPS (2016 Distributed Round 1)? I got wrong answer for it.
Thanks.
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#include "message.h"
#include "rps.h"
#include<map>
#include<set>
#include<string>
#include<vector>
#include<sstream>
#include<iostream>
#include<algorithm>
using namespace std;
pair<long long,char> s[(1<<17)];
pair<long long,char> res[(1<<7)];
void solve(long long ch){
long long p = 1;
long long next = 2;
while(ch!=1){
for (long long i=0;i<ch;i+=next){
char c1 = s[i].second,c2 = s[i+p].second;
if (c1 == 'P'){
if (c2 == 'S')
s[i] = s[i+p];
}
else if (c1 == 'S'){
if (c2 == 'R')
s[i] = s[i+p];
}
else if (c1 == 'R'){
if (c2 == 'P')
s[i] = s[i+p];
}
}
p = p*2;
next = next*2;
ch/=2;
}
}
int main(){
long long N = NumberOfNodes();
long long id = MyNodeId();
long long n = GetN();
long long n2 = 1;
for (long long i=0;i<n;i++) n2*=2;
long long k = 3; // k = 6 for large
while(2*k > n) k--;
N = 1;
for (long long i=0;i<k;i++) N*=2;
long long ch = n2/N/N;
long long step = N*ch;
if (id>N) return 0;
if (id!=N){
long long st = id*ch;
for (long long i=0;i<N;i++){
for (long long j=0;j<ch;j++){
s[j].first = j;
s[j].second = GetFavoriteMove(st+j);
}
solve(ch);
PutChar(N,s[0].second);
PutLL(N,s[0].first+st);
Send(N);
st += step;
}
}
else{
for (long long i=0;i<N;i++){
for (long long j=0;j<N;j++){
Receive(j);
s[j].second = GetChar(j);
s[j].first = GetLL(j);
}
solve(N);
res[i] = s[0];
}
for (long long i=0;i<N;i++){
s[i] = res[i];
}
solve(N);
cout << s[0].first << endl;
}
return 0;
}
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