Submission #552002

#	Time	Username	Problem	Language	Result	Execution time	Memory
552002		Theo830	Scales (IOI15_scales)	C++17	71.43 / 100	1 ms	212 KiB

scales

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ll,ii>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
#include "scales.h"
void init(int T) {

}
void orderCoins() {
    int W[] = {1, 2, 3, 4, 5, 6};
    vector<int>ex[2];
    ex[0].pb(getHeaviest(1,2,3));
    set<ll>e;
    f(i,0,3){
        e.insert(i+1);
    }
    e.erase(ex[0].back());
    for(auto x:e){
        ex[0].insert(ex[0].begin(),x);
    }
    ex[1].pb(getHeaviest(4,5,6));
    e.clear();
    f(i,3,6){
        e.insert(i+1);
    }
    e.erase(ex[1].back());
    for(auto x:e){
        ex[1].insert(ex[1].begin(),x);
    }
    W[5] = getHeaviest(ex[1].back(),ex[0].back(),ex[1][1]);
    if(W[5] != ex[1].back()){
        swap(ex[0],ex[1]);
    }
    if(ex[0][1] != getMedian(ex[0][0],ex[0][1],ex[0][2])){
        swap(ex[0][0],ex[0][1]);
    }
    ll p = getNextLightest(ex[1][0],ex[1][1],ex[1][2],ex[0][1]);
    if(p == ex[1][2]){
        W[4] = ex[0][2];
        W[3] = ex[0][1];
        W[0] = getLightest(ex[0][0],ex[1][1],ex[1][0]);
        W[1] = getMedian(ex[0][0],ex[1][1],ex[1][0]);
        W[2] = ex[0][0] + ex[1][1] + ex[1][0] - W[0] - W[1];
    }
    else{
        ll o = ex[1][0] + ex[1][1] - p;
        ll p2 = getNextLightest(ex[0][0],ex[0][1],W[5],o);
        if(p2 == ex[0][0]){
            W[0] = o;
            W[1] = ex[0][0];
            W[2] = ex[0][1];
            W[3] = getLightest(ex[0][2],p,W[5]);
            W[4] = ex[0][2] + p - W[3];
        }
        else if(p2 == ex[0][1]){
            W[0] = ex[0][0];
            W[1] = o;
            W[2] = ex[0][1];
            W[3] = getLightest(ex[0][2],p,W[5]);
            W[4] = ex[0][2] + p - W[3];
        }
        else{
            W[0] = ex[0][0];
            W[1] = ex[0][1];
            W[3] = getMedian(ex[0][2],o,p);
            if(W[3] == p){
                W[4] = o;
                W[2] = ex[0][2];
            }
            else if(W[3] == o){
                W[2] = p;
                W[4] = ex[0][2];
            }
            else{
                W[2] = p;
                W[4] = o;
            }
        }
    }
    answer(W);
}

Compilation message (stderr)

scales.cpp: In function 'void init(int)':
scales.cpp:26:15: warning: unused parameter 'T' [-Wunused-parameter]
   26 | void init(int T) {
      |           ~~~~^
scales.cpp: In function 'void orderCoins()':
scales.cpp:39:36: warning: conversion from 'long long int' to 'std::vector<int>::value_type' {aka 'int'} may change value [-Wconversion]
   39 |         ex[0].insert(ex[0].begin(),x);
      |                                    ^
scales.cpp:48:36: warning: conversion from 'long long int' to 'std::vector<int>::value_type' {aka 'int'} may change value [-Wconversion]
   48 |         ex[1].insert(ex[1].begin(),x);
      |                                    ^
scales.cpp:67:56: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   67 |         ll p2 = getNextLightest(ex[0][0],ex[0][1],W[5],o);
      |                                                        ^
scales.cpp:69:20: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   69 |             W[0] = o;
      |                    ^
scales.cpp:72:41: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   72 |             W[3] = getLightest(ex[0][2],p,W[5]);
      |                                         ^
scales.cpp:73:33: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   73 |             W[4] = ex[0][2] + p - W[3];
scales.cpp:77:20: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   77 |             W[1] = o;
      |                    ^
scales.cpp:79:41: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   79 |             W[3] = getLightest(ex[0][2],p,W[5]);
      |                                         ^
scales.cpp:80:33: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   80 |             W[4] = ex[0][2] + p - W[3];
scales.cpp:85:39: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   85 |             W[3] = getMedian(ex[0][2],o,p);
      |                                       ^
scales.cpp:85:41: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   85 |             W[3] = getMedian(ex[0][2],o,p);
      |                                         ^
scales.cpp:87:24: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   87 |                 W[4] = o;
      |                        ^
scales.cpp:91:24: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   91 |                 W[2] = p;
      |                        ^
scales.cpp:95:24: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   95 |                 W[2] = p;
      |                        ^
scales.cpp:96:24: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   96 |                 W[4] = o;
      |                        ^

• Subtask 1: 71.428571 / 100