大佬可以帮我看看为什么在使用cin.getline之后cin就没办法读入了

#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<string.h>
#include<map>;
using namespace std;
int main()
{
    int n;
    cin >> n;
    getchar();
    char a[1005][10];
    int sum = 0;
    int max = -1;
    int p[1005][5];//存储成绩
    map<string, int>mapA;
    for (int i = 0;i < n;i++) {
        cin.getline(a[i],10);//输入学生名字
        for (int j = 0;j < 3;j++) {
            cin >> p[i][j];
            mapA[a[i]] += p[i][j];
        }
        if (mapA[a[i]] > max)max = mapA[a[i]];
        getchar();
    }
    for (int i = 0;i < n;i++) {
        if (mapA[a[i]] == max) {
            cout << a[i] << " ";
            for (int j = 0;j < 3;j++) {
                cout << p[i][j] << " ";
            }
            break;
        }
    }
    return 0;
}