#include<stdio.h>
int main(){
double Arr[23]={0.5,0.6,0.7,0.75,0.8,0.85,0.9,0.95,0.96,0.97,0.98,0.99,0.991,0.992,0.993,0.994,0.995,0.996,0.997,0.998,0.999,0.9995,0.9999};
int i;
double P;
for (i=0; i<23; i++){
printf("\nMoi nhap P=");
scanf("%lf",&P);
if (P!=Arr[i]){
printf("\nP nhap sai, moi nhap lai");
}
while (P==Arr[i]);
printf("\nP nhap dung");
break;
}
return 0;
}