| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 727386 |
2023-04-20T14:39:02 Z |
Boycl07 |
Scales (IOI15_scales) |
C++17 |
|
1 ms |
340 KB |
#include <bits/stdc++.h>
#include "scales.h"
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 1; i <= n; ++i)
#define forn(i, l, r) for(int i = l; i <= r; ++i)
#define ford(i, r, l) for(int i = r; i >= l; --i)
const int LIM = 721;
int p[7], pos[LIM][7], barr[LIM], nx[LIM], n, arr[LIM][7];
int find_nx(int x)
{
if(!barr[nx[x]]) return nx[x];
return nx[x] = find_nx(nx[x]);
}
void init(int T)
{
int idx = 0;
nx[0] = 1;
rep(i, 6) p[i] = i;
do
{
++idx;
rep(i, 6) pos[idx][p[i]] = i;
nx[idx] = idx + 1;
rep(i, 6) arr[idx][i] = p[i];
} while(next_permutation(p + 1, p + 1 + 6));
}
int w[6];
struct condition {
int type;
int a, b, c, d;
int res;
condition(){}
condition(int type_, int a_, int b_, int c_) : type(type_), a(a_), b(b_), c(c_){}
condition(int type_, int a_, int b_, int c_, int d_) : type(type_), a(a_), b(b_), c(c_), d(d_){}
};
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
vector<condition> q;
void update()
{
auto e = q.back();
int type = e.type;
int a = e.a, b = e.b, c = e.c, d = e.d;
if(type == 0)
e.res = getLightest(a, b, c);
else if(type == 1)
e.res = getMedian(a, b, c);
else if(type == 2)
e.res = getHeaviest(a, b, c);
else e.res = getNextLightest(a, b, c, d);
q.back().res = e.res;
}
int tmp[3];
bool check(int idx)
{
for(auto e : q)
{
int type = e.type;
int a = e.a, b = e.b, c = e.c, res = e.res;
tmp[0] = a;
tmp[1] = b;
tmp[2] = c;
sort(tmp, tmp + 3, [&idx](int x, int y) {
return pos[idx][x] < pos[idx][y];
});
a = tmp[0];
b = tmp[1];
c = tmp[2];
// cout << idx << endl;
// cout << pos[idx][a] << " " << pos[idx][b] << " " << pos[idx][c] << endl;
// cout << type << " " << a << " " << b << " " << c << endl;
// cout << res << endl;
if(type != 3)
{
if(type == 0)
{
if(res != a) return 0;
}
else if(type == 1)
{
if(res != b) return 0;
}
else
{
if(res != c) return 0;
}
}
else
{
int d = e.d;
if(pos[d] < pos[a])
{
if(res != a) return 0;
}
if(pos[d] < pos[b])
{
if(res != b) return 0;
}
if(res != c) return 0;
}
}
return 1;
}
int randint(int l, int r)
{
return rng() % (r - l + 1) + l;
}
void orderCoins()
{
int cnt = 720;
rep(i, 720) barr[i] = 0, nx[i] = i + 1;
q.clear();
rep(a, 4)
forn(b, a + 1, 5)
forn(c, b + 1, 6)
{
// q.push_back(condition(0, a, b, c));update();
//q.push_back(condition(1, a, b, c));update();
//q.push_back(condition(2, a, b, c));update();
// forn(d, 1, 6) if(d != a && d != b && d != c) q.push_back(condition(3, a, b, c, d));update();
q.push_back(condition(0, a, b, c));update();
//cout << q.size() << endl;
//out << q.back().res << endl;
int idx = find_nx(0);
for(; idx <= 720; idx = find_nx(idx))
{
if(!check(idx)) --cnt, barr[idx] = 1;
}
if(cnt == 1)
{
int idx = find_nx(0);
rep(i, 6) w[i - 1] = arr[idx][i];
answer(w);
return;
}
}
}
Compilation message
scales.cpp: In function 'void init(int)':
scales.cpp:21:15: warning: unused parameter 'T' [-Wunused-parameter]
21 | void init(int T)
| ~~~~^
scales.cpp: In function 'int randint(int, int)':
scales.cpp:122:32: warning: conversion from 'std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
122 | return rng() % (r - l + 1) + l;
| ~~~~~~~~~~~~~~~~~~~~^~~
scales.cpp: In function 'void orderCoins()':
scales.cpp:149:17: warning: declaration of 'idx' shadows a previous local [-Wshadow]
149 | int idx = find_nx(0);
| ^~~
scales.cpp:142:13: note: shadowed declaration is here
142 | int idx = find_nx(0);
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 4 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 7 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 11 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 14 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 15 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 16 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 17 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 18 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 19 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 21 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 23 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 25 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 28 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 29 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 30 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 31 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 32 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 33 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 34 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 35 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 36 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 37 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 38 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 39 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 40 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
