Submission #31727

#	Time	Username	Problem	Language	Result	Execution time	Memory
31727		simotion	medians (balkan11_medians)	C++14	100 / 100	26 ms	2600 KiB

medians

#include <bits/stdc++.h>
using namespace std;
bool used[200005];
int inp[100000],n,li,hi;
void low_next() {
    while(used[li]) li++;
    printf("%d ",li),used[li]=true;
}
void high_next() {
    while(used[hi]) hi--;
    printf("%d ",hi),used[hi]=true;
}
int main() {
    scanf("%d",&n);
    li=1,hi=2*n-1;
    for(int i=0;i<n;i++) scanf("%d",&inp[i]);
    printf("%d ",inp[0]),used[inp[0]]=true;
    for(int i=1;i<n;i++) {
        if(inp[i-1]==inp[i]) low_next(),high_next();
        else if(inp[i-1]<inp[i]) {
            if(used[inp[i]]) high_next(),high_next();
            else {
                high_next();
                printf("%d ",inp[i]),used[inp[i]]=true;
            }
        } else {
            if(used[inp[i]]) low_next(),low_next();
            else {
                low_next();
                printf("%d ",inp[i]),used[inp[i]]=true;
            }
        }
    }
}

Compilation message (stderr)

medians.cpp: In function 'int main()':
medians.cpp:14:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
medians.cpp:16:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=0;i<n;i++) scanf("%d",&inp[i]);
                                             ^

• Subtask 1: 65 / 65
• Subtask 2: 35 / 35