Submission #953129

#	Time	Username	Problem	Language	Result	Execution time	Memory
953129		Pacybwoah	양말 찾기 (KPI13_socks)	C++17	0 / 1	2255 ms	65536 KiB

socks

#include<cstdio>
using namespace std;
int arr[32][2];
int main(){
    int n;
    scanf("%d",&n);
    int x,i;
    for(i=0;i<32;i++) arr[i][0]=0,arr[i][1]=0;
    int j;
    for(i=0;i<n;i++){
        scanf("%d",&x);
        x+=1000000001;
        for(j=31;j>=0;j--){
            if(x&(1<<j)) arr[j][1]^=x;
            else arr[j][0]^=x;
        }
    }
    for(i=0;i<32;i++){
        if(arr[i][0]>0&&arr[i][1]>0){
            arr[i][0]-=1000000001;
            arr[i][1]-=1000000001;
            printf("%d %d\n",(arr[i][0]<arr[i][1]?arr[i][0]:arr[i][1]),(arr[i][1]>arr[i][0]?arr[i][1]:arr[i][0]));
            return 0;
        }
    }
}

Compilation message (stderr)

socks.cpp: In function 'int main()':
socks.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
socks.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d",&x);
      |         ~~~~~^~~~~~~~~

• Subtask 1: 0 / 1