| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 800714 | firewater | Scales (IOI15_scales) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "scales.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#define ll long long
using namespace std;
#define _MAXN 6
#define _MAX_ANSWER_CALLS 1
static int _realC[_MAXN];
static int _ind[_MAXN];
static int _numQueries;
static int _numAnswerCalls;
static FILE * _f;
static FILE * _of;
static int _getNumberOfTests() {
int T, ret;
_f = fopen("scales.in", "r");
_of = fopen("scales.out", "w");
ret = fscanf(_f, "%d", &T);
assert(ret == 1);
return T;
}
static void _initNewTest() {
int i, ret;
for (i = 0; i < _MAXN; i++) {
ret = fscanf(_f, "%d", &_realC[i]);
assert(ret == 1);
_realC[i]--;
_ind[_realC[i]] = i;
}
_numQueries = 0;
_numAnswerCalls = 0;
}
void answer(int W[]) {
int i;
_numAnswerCalls++;
if (_numAnswerCalls > _MAX_ANSWER_CALLS)
return;
for (i = 0; i < 6; i++)
fprintf(_of, "%d ", W[i]);
fprintf(_of, "\n%d\n", _numQueries);
}
static void _checkQuery(int A, int B, int C, int D) {
if (D == -1) {
if (A < 1 || A > 6 || B < 1 || B > 6 || C < 1 || C > 6)
assert(0);
if (A == B || B == C || A == C)
assert(0);
}
else {
if (A < 1 || A > 6 || B < 1 || B > 6 || C < 1 || C > 6 || D < 1 || D > 6)
assert(0);
if (A == B || A == C || A == D || B == C || B == D || C == D)
assert(0);
}
}
int getMedian(int A, int B, int C) {
_numQueries++;
_checkQuery(A, B, C, -1);
A--; B--; C--;
if (_ind[B] < _ind[A] && _ind[A] < _ind[C])
return A + 1;
if (_ind[C] < _ind[A] && _ind[A] < _ind[B])
return A + 1;
if (_ind[A] < _ind[B] && _ind[B] < _ind[C])
return B + 1;
if (_ind[C] < _ind[B] && _ind[B] < _ind[A])
return B + 1;
return C + 1;
}
int getHeaviest(int A, int B, int C) {
_numQueries++;
_checkQuery(A, B, C, -1);
A--; B--; C--;
if (_ind[A] > _ind[B] && _ind[A] > _ind[C])
return A + 1;
if (_ind[B] > _ind[A] && _ind[B] > _ind[C])
return B + 1;
return C + 1;
}
int getLightest(int A, int B, int C) {
_numQueries++;
_checkQuery(A, B, C, -1);
A--; B--; C--;
if (_ind[A] < _ind[B] && _ind[A] < _ind[C])
return A + 1;
if (_ind[B] < _ind[A] && _ind[B] < _ind[C])
return B + 1;
return C + 1;
}
int getNextLightest(int A, int B, int C, int D) {
int allLess = 1;
_numQueries++;
_checkQuery(A, B, C, D);
A--; B--; C--; D--;
if (_ind[A] > _ind[D] || _ind[B] > _ind[D] || _ind[C] > _ind[D])
allLess = 0;
if (allLess == 1) {
if (_ind[A] < _ind[B] && _ind[A] < _ind[C])
return A + 1;
if (_ind[B] < _ind[A] && _ind[B] < _ind[C])
return B + 1;
return C + 1;
}
if (_ind[A] > _ind[D]) {
if ((_ind[A] < _ind[B] || _ind[B] < _ind[D]) && (_ind[A] < _ind[C] || _ind[C] < _ind[D]))
return A + 1;
}
if (_ind[B] > _ind[D]) {
if ((_ind[B] < _ind[A] || _ind[A] < _ind[D]) && (_ind[B] < _ind[C] || _ind[C] < _ind[D]))
return B + 1;
}
return C + 1;
}
// int getHeaviest(int A, int B, int C)
// int getMedian(int A, int B, int C)
// int getLightest(int A, int B, int C)
// int getNextLightest(int A, int B, int C, int D)
#define N 100
int w,x,y,a[N],p[N],sav,ans[6];
void init(int T) {
/* ... */
}
void orderCoins() {
/* ... */
x=0;y=1;
ans[x]=y;
for(int i=1;i<=6;++i)p[i]=0;
p[y]=1;
for(int i=1;i<=5;++i){
w=0;
for(int j=1;j<=6;++j)
if(!p[j])a[++w]=j;
sav=a[1];
for(int j=2;j<=w;++j)
sav=getMedian(ans[0],sav,a[j]);
ans[i]=sav;
p[sav]=1;
}
answer(ans);
}
int main() {
int T, i;
T = _getNumberOfTests();
init(T);
for (i = 1; i <= T; i++) {
_initNewTest();
orderCoins();
}
return 0;
}