Submission #1059209

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059209		vjudge1	Robots (IOI13_robots)	C++17	76 / 100	168 ms	65536 KiB

robots

#include "robots.h"

#include<bits/stdc++.h>

using namespace std;

typedef pair<int, int> ii;
typedef long long ll;
typedef pair<long long, long long> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<string> vs;
#define pb push_back
#define fi first
#define se second
#define whole(v) v.begin(), v.end()
#define rwhole(v) v.rbegin(), v.rend()
#define inf INT_MAX/2
#define fro front

bool cmp(vi a, vi b) {
    return a.size() < b.size();
}

int putaway(int a, int b, int t, int x[], int y[], int w[], int s[]){
    vector<vi> n(a + b);
    int mem[t];
    memset(mem, -1, sizeof mem);
    for(int i = 0; i < a; ++i){
        int k = x[i];
        for(int j = 0; j < t; ++j){
            if(w[j] < k){
                n[i].pb(j);
                mem[j] = 1;
            }
        }
    }
    for(int i = 0; i < b; ++i){
        int k = y[i];
        for(int j = 0; j < t; ++j){
            if(s[j] < k){
                n[a + i].pb(j);
                mem[j] = 1;
            }
        }
    }
    sort(whole(n), cmp);
    for(int i = 0; i < t; ++i){
        if(mem[i] == -1){
            return -1;
        }
    }
    if(a == 0){
        swap(w, s);
        swap(x, y);
        swap(a, b);
    }
    if(b == 0){
        sort(w, w + a);
        sort(x, x + t);
        int cnt = 0;
        int ans = 0;
        while(cnt < t){
            ans++;
            int i = 0;
            int j = 0;
            while(i < a && j < t){
                if(x[j] > w[i]){
                    if(mem[i] == 10){
                        i++;
                    }
                    mem[i] = 10;
                    ++i;
                    ++j;
                    cnt++;
                }else{
                    j++;
                }
            }
        }
        return ans;
    }
    int ans = 0;
    int cnt = 0;
    int pos[n.size()];
    memset(pos, 0, sizeof pos);
    while(cnt < t){
        for(int i = 0; i < n.size(); ++i){
            if(pos[i] >= n[i].size()){
                continue;
            }
            if(mem[n[i][pos[i]]] == 10){
                pos[i]++;
                i--;
            }else{
                mem[n[i][pos[i]]] = 10;
                cnt++;
                pos[i]++;
            }
        }
        ans++;
    }
    return ans;
}

Compilation message (stderr)

robots.cpp: In function 'int putaway(int, int, int, int*, int*, int*, int*)':
robots.cpp:88:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |         for(int i = 0; i < n.size(); ++i){
      |                        ~~^~~~~~~~~~
robots.cpp:89:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |             if(pos[i] >= n[i].size()){
      |                ~~~~~~~^~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 0 / 14
• Subtask 3: 25 / 25
• Subtask 4: 37 / 37
• Subtask 5: 0 / 10