Wednesday, December 15, 2010

Giải Olympic - 2009 Bách khoa hà nội - Tính số lô an toàn

/*goi y giai de thi olimpic tau bien
de thi la ma tran 2 chieu thi them 1 bien n nua
de chay*/
#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
int m,n,i,k,dem=0;
int a[20],b[20];
printf("\n nhap vao gia tri cua lo m=");
scanf("\%d",&m);
printf("\n nhap vao so tram gac n=");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
printf("\n nhap vao toa do tram gac k=");
scanf("%d",&k);
if(k-1>0) {
a[k]=1;
a[k+1]=1;
a[k-1]=1;
}
}
for(i=1;i<=m;i++)
{
if(a[i]==1) dem++;
}
printf("\n so lo duoc an toan la %d",dem);
getch();
}
 
 

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