Submission #1235465

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235465		simplemind_31	Coins (IOI17_coins)	C++20	0 / 100	1 ms	576 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> b, int c){
    vector<int> flip;
    if(c==1){
        if(b[1]==1){
            flip.push_back(0);
        }else{
            flip.push_back(1);
        }
    }else{
        if(b[1]==1){
            flip.push_back(1);
        }else{
            flip.push_back(0);
        }
    }
    /*int l=0,r=63;
    vector<int> flip;
    while(l<r){
        int mid=(l+r)>>1;
        if(c>mid){
            //derecha 11 o 01;
            if(!b[mid+1]){
                flip.push_back(mid+1);
            }
            l=mid+1;
        }else{
            //izquierda 00 o 10
            if(b[mid+1]){
                flip.push_back(mid+1);
            }
            r=mid;
        }
    }
    if(flip.empty()){
        flip={0,0};
    }
    return flip;*/
}
int find_coin(vector<int> b){
    int l=0,r=1;
    while(l<r){
        int mid=(l+r)>>1;
        if(b[mid+1]){
            l=mid+1;
        }else{
            r=mid;
        }
    }
    return l;
}

Compilation message (stderr)

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type]
   41 | }
      | ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50