RT，给某些调了很久调不出来的人

#include<bits/stdc++.h>
#define ll long long
#define random(x) rand()*rand()%(x)
using namespace std;
ll n=10,m=10,tot;
int main(){
	srand((unsigned)time(NULL));
	freopen("1.in","w",stdout);
	printf("%lld %lld\n",n,m);
	tot=n;
	for(ll i=1;i<=n;i++){
		char c=(char)('a'+random(26));
		cout<<c;
	}
	printf("\n");
	while(m--){
		ll opt=random(6)+1;
		if(!tot){
			if(opt<=3) opt=1;
			else opt=4;
		}
		if(opt==1){
			printf("I ");
			ll x=random(tot+1);
			char c=(char)('a'+random(26));
			cout<<x<<" "<<c<<endl;
			tot++;
		}
		if(opt==2){
			printf("D ");
			ll x=random(tot)+1;
			printf("%lld\n",x);
			tot--;
		}
		if(opt==3){
			printf("R ");
			ll x=random(tot)+1,y=random(tot)+1;
			if(x>y) swap(x,y);
			printf("%lld %lld\n",x,y);
		}
		if(opt==4){
			printf("P ");
			ll x=random(n)+1;
			printf("%lld\n",x);
		}
		if(opt==5){
			printf("T ");
			ll x=random(tot)+1;
			printf("%lld\n",x);
		}
		if(opt==6){
			printf("Q ");
			ll x=random(tot)+1,y=random(tot)+1;
			if(x>y) swap(x,y);
			printf("%lld %lld\n",x,y);
		}
	}
}