Submission #1059190

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059190		vjudge1	Robots (IOI13_robots)	C++17	0 / 100	1 ms	448 KiB

robots

#include "robots.h"
#include<bits/stdc++.h>
#define ll long long

using namespace std;

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    vector<pair<int,int>> Tw, Ts;
    for(int i=0; i < T; i++){
        Tw.push_back({W[i],S[i]});
        Ts.push_back({S[i],W[i]});
    }
    sort(Tw.rbegin(),Tw.rend());
    sort(Ts.rbegin(),Ts.rend());
    
    int r1=0,r2=0;
    if(A == 2){
        for(int i=0; i < T; i++){
            if(Tw[i].first < X[0]){
                r1++;
            }
            if(Tw[i].first < X[1]){
                r2++;
            }
        }
    }else if(B == 2){
        for(int i=0; i < T; i++){
            if(Ts[i].first < Y[0]){
                r1++;
            }
            if(Ts[i].first < Y[1]){
                r2++;
            }
        }
    }else{
        for(int i=0; i < T; i++){
            if(Tw[i].first < X[0]){
                r1++;
            }
        }
        for(int i=0; i < T; i++){
            if(Ts[i].first < Y[0]){
                r2++;
            }
        }
    }

    int ans=-1;
    if(r1 == 2 && r2 >= 1 || r2 == 2 && r1 >= 1){
        ans = 1;
    }else if(r1 == 1 && r2 == 1){
        int a,b;
        for(int i=0; i < T; i++){
            if(Tw[i].first < X[0]){
                a = i;
            }
            if(Tw[i].second < Y[0]){
                b = i;
            }
        }
        if(a != b){
            ans = 1;
        }else{
            ans = 2;
        }
    }
    return ans;
}

Compilation message (stderr)

robots.cpp: In function 'int putaway(int, int, int, int*, int*, int*, int*)':
robots.cpp:49:16: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   49 |     if(r1 == 2 && r2 >= 1 || r2 == 2 && r1 >= 1){
      |        ~~~~~~~~^~~~~~~~~~
robots.cpp:61:9: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   61 |         if(a != b){
      |         ^~
robots.cpp:61:9: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]

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