求助！T396765 [10 月入门赛-E] 式神考核全部WA

#include<iostream>
using namespace std;
int main(){
	long long n,s,m,sy;
	long long a,b,c,d;
	cin>>n>>s>>m;
	a=n-m;;
	for(long long i=0;i<n;i++){
		for(long long j=0;j<n;j++){
			if((1000000/n)*a+i+(1000000/n)*j>=s&&(1000000/n)*a+i+(1000000/n)*j<s+1){
				b=i;
				c=j;
			}
		}
	}
	d=a-b-c;
	cout<<"p"<<a<<"(+"<<b<<")f"<<c<<"l"<<d;
}