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last.cpp
208 lines (171 loc) · 2.73 KB
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last.cpp
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#include <stdio.h>
void done ();
int factorial (int x)
{
int cc = 0 ;
x=x-1;
for (;x>0;x--)
{
cc=cc+x;
}
return cc;
}
int cc = 0 ;
int factorial1 (int x)
{
if ( x > 0 )
{
x=x-1;
cc=cc+x;
x=factorial1(x);
}
else
{
return x;
}
return cc;
}
int range (int a );
int b = 0 ;
int v[5] = {2,4,6,8,10};
int min (int y )
{
if(range(y) != -1)
return range(y) ;
int m , n ;
int a , b = 0 ;
a = y / 2 ;
if( y % 2 == 1)
b = (y/2) +1 ;
else
b = y/2 ;
m = range(a);
n = range(b);
if ( m == -1 )
m = min(a);
if ( n == -1)
n = min (b);
return m+n;
//printf("%d",y);
}
int range (int a )
{
if (a < 8 && a > 2 )
{
return v[a-3];
}
else
return -1;
}
int done (int num , int num1)
{
int c [num];
int x [num-1];
int i = 0 ;
int j = 0 ;
cc=0;
int minimum = 0 ;
if(range(num) == -1 ) { printf("min of %d %% %d\n",num,num-1+min(num-1));
minimum = num-1+min(num-1);
}
else { printf("range of %d is %d \n",num , range(num)); minimum= range(num) ; }
int max = num-1+factorial1(num-1) ;
if(num1 >max || num1 < minimum )
{
printf("-1");
return 0;
}
int dif = 0 ;
int case1 = 0;
for ( i = num-1 ; i>=0 ; i--)
{
c [i] = i+1 ;
}
for ( i = num-2 ; i>=0 ; i--)
{
x [i] = i+1 ;
}
dif = max - num1;
j=2;
i=num-j;
printf(" dif = %d , i = %d , j = %d , case = %d dif-i = %d \n",dif,i,j,case1 , dif-i);
for(;;)
if(dif-i > 0)
{
if(j==2)
j++;
j++;
dif = dif-i;
i=num-j;
case1++;
printf(" dif = %d , i = %d , j = %d , case = %d dif-i = %d \n",dif,i,j,case1 , dif-i);
}
else break;
if(case1==0)
{
c[num-1] = num;
}
else if(case1==1)
{
c[num-1] = num-1;
c[num-2] = num;
}
else if(case1==2)
{
c[num-1] = num-2;
c[num-2] = num-1;
c[num-3] = num;
}
else if(case1==4)
{
c[num-1] = num-3;
c[num-2] = num-2;
c[num-3] = num-1;
c[num-4] = num;
}
if(case1==i)
{
c[num-1] = num-4;
c[num-2] = num-3;
c[num-3] = num-2;
c[num-4] = num-1;
c[num-5] = num;
}
else if(case1==6)
{
c[num-1] = num-5;
c[num-2] = num-4;
c[num-3] = num-3;
c[num-4] = num-2;
c[num-5] = num-1;
c[num-6] = num;
}
for ( i = 7 ; i<1000000 ; i++)
if(case1==i)
{
for( j=1;j<=i;j++)
c[num-j]=num-i-j;
break;
}
printf("case = %d ",case1);
for (i=1;i<100;i++)
if(dif==i)
{
c[i] = i+2;
c[i+1] = i+1;
printf(" c[%d] = %d , c[%d] = %d ",i , i+2 , i+1 , i+1 );
}
int total = 0 ;
for ( i = num-1 ; i>=0 ; i--)
{
printf("\nc [%d] = %d ",i,c[i]);
}
return 0 ;
}
int main(){
//49 1170
int num = 48;
int num1 = 430;
///////////////////////////////////////////////////
done(num,num1);
}