Submission #1884681

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Source Code Expand

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

int N;
int A[1000010];
char ans[1000010];
int id[1000010];

int main()
{
    scanf("%d",&N);
    for(int i = 0; i < N; i++)
    {
        scanf("%d",A + i);
        id[A[i]] = i + 1;
    }
    id[N + 1] = 0;

    int now = 0;
    ans[A[0]] = 'A';
    for(int i = 1; i < N; i++)
    {
        if(id[A[i - 1] + 1] < id[A[i] + 1])ans[A[i]] = now + 'A';
        else
        {
            if(now == 25)
            {
                printf("-1\n");
                return 0;
            }
            now++;
            ans[A[i]] = now + 'A';
        }
    }
    for(int i = 1; i <= N; i++)printf("%c",ans[i]);printf("\n");
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&N);
                   ^
./Main.cpp:14:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",A + i);
                          ^

Judge Result