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#include "testlib.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
set<int>s[5];
int main(int argc, char *argv[]) {
/*
* inf: input
* ouf: player output
* ans: standard output
*/
registerTestlibCmd(argc, argv);
int n = inf.readInt();
for(int i = 1; i <= n; i++){
s[1].insert(i);
}
int m = ouf.readInt();
for(int i = 1; i <= m; i++){
int a = ouf.readInt(1, 3), b = ouf.readInt(1, 3);
if(a == b)quitf(_wa, "Same basket");
if(s[a].empty())quitf(_wa, "Empty basket a");
int mida = (s[a].size()+2)/2;
set<int>::iterator it;
for(it = s[a].begin(); it != s[a].end(); it++){
mida--;
if(mida == 0)break;
}
int val = (*it);
s[a].erase(val);
s[b].insert(val);
int midb = (s[b].size()+2)/2;
for(it = s[b].begin(); it != s[b].end(); it++){
midb--;
if(midb == 0)break;
}
if((*it) != val)quitf(_wa, "Invalid target basket b on %d operation", i);
}
if(s[3].size()==n){
int ref = ans.readInt();
double score = (2.0*ref-1.0*m)/(1.0*ref);
if (score < 0) score = 0.0;
double unbounded_score = max(0.0, score);
score = min(score, 1.0);
score = max(score, 0.0);
quitp(score, "Ratio: %.3lf, RatioUnbounded: %.3lf", score, unbounded_score);
}
else quitf(_wa, "Invalid operation");
} |