제출 #339690

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
339690		Hazem	Preokret (COCI19_preokret)	C++14	50 / 50	1 ms	364 KiB

preokret

/*
ID: tmhazem1
LANG: C++14
TASK: pprime
*/

#include <bits/stdc++.h>
using namespace std;

#define S second
#define F first
#define LL long long
const int N = 2e5 + 10;


LL LINF = 100000000000000000;
LL INF = 1000000000;

int a[N];
int cnt[N][3];

int main()
{
    //freopen("out.txt","w",stdout);
    int n,ties = 1,mx = 0,cur = 1;
    scanf("%d",&n);    

    for(int i=1;i<=n;i++){
        scanf("%d",&a[i]);
        cnt[i][1] = cnt[i-1][1]+(a[i]==1);
        cnt[i][2] = cnt[i-1][2]+(a[i]==2);

        if(a[i]==a[i-1])cur++;
        else cur = 1;
        if(cnt[i-cur][a[i]]<cnt[i-cur][3-a[i]]&&cnt[i][a[i]]>cnt[i][3-a[i]])mx = max(mx,cur);
        ties += cnt[i][1]==cnt[i][2];
    }

    printf("%d %d\n%d\n%d\n",cnt[n][1],cnt[n][2],ties,mx);
}       

컴파일 시 표준 에러 (stderr) 메시지

preokret.cpp: In function 'int main()':
preokret.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
preokret.cpp:29:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |         scanf("%d",&a[i]);
      |         ~~~~~^~~~~~~~~~~~

• Subtask 1: 50 / 50