Submission #199578

#	Time	Username	Problem	Language	Result	Execution time	Memory
199578		SamAnd	Preokret (COCI19_preokret)	C++17	50 / 50	6 ms	380 KiB

preokret

#include <bits/stdc++.h>
using namespace std;
const int N = 255;

int n;
int a[N];

int main()
{
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    int q1 = 0, q2 = 0;
    for (int i = 1; i <= n; ++i)
    {
        if (a[i] == 1)
            ++q1;
        else
            ++q2;
    }
    printf("%d %d\n", q1, q2);
    int ans1 = 1;
    q1 = 0, q2 = 0;
    for (int i = 1; i <= n; ++i)
    {
        if (a[i] == 1)
            ++q1;
        else
            ++q2;
        if (q1 == q2)
            ++ans1;
    }
    printf("%d\n", ans1);
    int ans2 = 0;
    q1 = 0, q2 = 0;
    for (int i = 1; i <= n; ++i)
    {
        if (a[i] == 1)
            ++q1;
        else
            ++q2;
        if (q1 < q2)
        {
            int q = 0;
            for (int j = i + 1; j <= n; ++j)
            {
                if (a[j] == 2)
                    break;
                ++q;
            }
            if (q1 + q > q2)
                ans2 = max(ans2, q);
        }
        else if (q2 < q1)
        {
            int q = 0;
            for (int j = i + 1; j <= n; ++j)
            {
                if (a[j] == 1)
                    break;
                ++q;
            }
            if (q2 + q > q1)
                ans2 = max(ans2, q);
        }
    }
    printf("%d\n", ans2);
    return 0;
}

Compilation message (stderr)

preokret.cpp: In function 'int main()':
preokret.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
preokret.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 50 / 50