算法提高 新建Microsoft Word文档

#include <iostream>
#include <cstdio>
#include <vector>
#include <queue>
#include <cstring>
#include <algorithm>
#include <cstdlib>
#define for(i,x,n) for(int i=x;i<n;i++)
#define ll long long int
#define INF 0x3f3f3f3f
#define MOD 1000000007
#define MAX_N 50005

using namespace std;

int main()
{
    //freopen("data.txt", "r", stdin);
    //freopen("data.out", "w", stdout);
    int a[10005];
    char c[30];
    int n;
    int t;
    fill(a,a+10005,0);
    scanf("%d",&n);
    for(i,1,n+1){
        scanf("%s",c);
        if(c[0]=='N'){
            for(j,1,n+1){
                if(a[j]==0){
                    a[j]=1;
                    printf("%d\n",j);
                    break;
                }
            }
            continue;
        }else{
            scanf("%d",&t);
            if(a[t]==0){
                printf("Failed\n");
            }else{
                a[t]=0;
                printf("Successful\n");
            }
        }
    }
    //fclose(stdin);
    //fclose(stdout);
    return 0;
}