求大牢修改(必关)

#include<bits/stdc++.h>
using namespace std;
struct man{
	int towrad;
	string name;
};
man a[100010];
int main(){
    int n,m;
    cin>>n>>m;
	int ans=1;
    for(int i=1;i<=n;i++){
		cin>>a[i].towrad>>a[i].name;
//		cout<<"a[i].towrad is "<<a[i].towrad<<"\n";
	}
    for(int i=1;i<=m;i++){
    	int lorrg,num;
    	cin>>lorrg>>num;
//		cout<<"#"<<a[ans].towrad<<"\n";
    	if(a[ans].towrad==0){//左减右加;
			if(lorrg){//右;
				ans+=num;
				ans%=n;
//				cout<<"in if 右 ans is "<<ans<<"\n";
			}else{//左;
				ans-=num;
				if(ans<=0){
					ans+=n;
				}
//				cout<<"in if zuo ans is "<<ans<<"\n";
			}
		}else{
			if(lorrg){//右;
				ans-=num;
				if(ans<=0){
					ans+=n;
				}
//				cout<<"in else 右 ans is "<<ans<<"\n";
			}else{//左;
				ans+=num;
				ans%=n;
//				cout<<"in else 左 ans is "<<ans<<"\n";
			}
		}
	}
//	cout<<ans;
	cout<<a[ans].name;
	return 0;
}