int main()
{
int i;
scanf("%d%d",&n,&m);
scanf("%s",dr+1);
jc[0]=inv[0]=1;
for(i=1;i<=n;i++)
{
jc[i]=jc[i-1];
cheng(jc[i],i);
inv[i]=power(jc[i],Mod-2);
}
int ans=0;
int val=zuhe(n-1,m);
int zeng=9;
for(i=n;i>=1;i--)
{
int now=dr[i]-'0';
cheng(now,val);
jia(ans,now);
now=zuhe(i-2,m);
cheng(now,zeng);
jia(val,now);
cheng(zeng,10);
}
printf("%d\n",ans);
return 0;
}
int main()
{
void cheng(int *,int *,int),gjcheng(int *,int *,int *),chu(int *,int),jia(int *,int *);
int i,j,k,n;
scanf("%d",&n);
for (i=1;i<=n;i++)
{
a[i][0][0]=1;
a[i][0][1]=1;
for (j=1;j<=i;j++)
cheng(a[i][j],a[i][j-1],i-j+1);
}
f[0][0]=1;
f[0][1]=1;
for (i=1;i<=n;i++)
{
memcpy(f[i],f[i-1],sizeof(f[i-1]));
for (j=1;j<=i-1;j++)
{
cheng(b,a[i-1][j],j+1);
gjcheng(b,b,f[i-j-1]);
chu(b,2);
jia(f[i],b);
if (j>1 && (j+1)%3!=0)
{
gjcheng(b,a[i-1][j],f[i-j-1]);
chu(b,2);
jia(f[i],b);
}
}
}
printf("%d",f[n][f[n][0]]);
for (i=f[n][0]-1;i>=1;i--)
{
j=f[n][i];
printf("%d",j/100);
j%=100;
printf("%d",j/10);
j%=10;
printf("%d",j);
}
printf("\n");
system("pause");
return(0);
}
int main()
{
int choose;
list *Dxs1,*Dxs2,*re1,*re2;
Dxs1 = csh();
Dxs2 = csh();
re1 = csh();
while(true)
{
clear(Dxs1);
clear(Dxs2);
clear(re1);
printf("多项式相加请输入---1\n");
printf("多项式相减请输入---2\n");
printf("多项式相乘请输入---3\n");
printf("退出---------------4\n");
scanf("%d",&choose);
switch(choose)
{
case 1:
start(Dxs1,Dxs2);
jia(Dxs1,Dxs2,re1);
printf("两个多项式相加的结果： ");
print_dxs(re1);
break;
case 2:
start(Dxs1,Dxs2);
jian(Dxs1,Dxs2,re1);
printf("两个多项式相减的结果： ");
print_dxs(re1);
break;
case 3:
start(Dxs1,Dxs2);
cheng(Dxs1,Dxs2,re1);
printf("两个多项式相乘的结果： ");
print_dxs(re1);
break;
case 4:exit(1);break;
default:
printf("错误！\n");
break;
}
}
}
int main()
{
system("color f0");
shuoming();
short cuo=0;
node *tou1=NULL,*tou2=NULL,* result=NULL;
while(1)
{
do
{
cout<<"请选择功能:"<<endl;
cin>>yunsuan;
if(!cin)
{
cout<<"您输入的不是数字,请重新运行程序"<<endl;
exit(0);
}//if
switch(yunsuan)
{
case 1:cuo=0;jia(tou1,tou2,result);break;
case 2:cuo=0;jian(tou1,tou2,result);break;
case 3:cuo=0;cheng(tou1,tou2,result);break;
case 4:cuo=0;jifen(tou1,result);break;
case 5:cuo=0;weifen(tou1,result);break;
case 6:cuo=0;qiuzhi(tou1,result);break;
case 7:cuo=0;init(tou1);cout<<"输入各项:"<<endl;cout<<"y="<<endl;fuzhi(tou1);outxu(tou1,result);break;
default:cuo=1;cout<<"超出功能选择范围,请重新选择:"<<endl;
}//switch
} while(cuo==1);//do
out(result);
destory(tou1);destory(tou2);destory(result);
short i=0;
cout<<"是否清屏(1:是)(0:否):";
cin>>i;
if(i==1) {system("cls");shuoming();}
else cout<<"*********************"<<endl;
}//while
return 0;
}
void main()
{
printf("sum is %d\n",jia(1,7));
}