Submission #44634

#	Time	Username	Problem	Language	Result	Execution time	Memory
44634		RayaBurong25_1	Editor (BOI15_edi)	C++17	0 / 100	203 ms	37864 KiB

edi

#include <stdio.h>
#include <map>
typedef struct node node;
struct node
{
    std::map<std::pair<int, int>, int> last;
};
node N[300005];
int P[300005];
int main()
{
    int n;
    scanf("%d", &n);
    int i, x;
    std::map<std::pair<int, int>, int>::iterator it;
    P[0] = 0;
    for (i = 1; i <= n; i++)
    {
        scanf("%d", &x);
        if (x > 0)
        {
            P[i] = x;
            N[x].last[{0, -i}] = P[i - 1];
            printf("%d\n", x);
        }
        else
        {
            it = N[P[i - 1]].last.lower_bound({x + 1, -i});
            P[i] = it->second;
            N[it->second].last[{x, -i}] = P[i - 1];
            printf("%d\n", it->second);
        }
    }
}

Compilation message (stderr)

edi.cpp: In function 'int main()':
edi.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
edi.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x);
         ~~~~~^~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 15
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37