——————日历问题——————

#include

int xing(int year);

int run(int year);

int main()

{

int year;

int yue[12]={31,28,31,30,31,30,31,31,30,31,30,31};

int xingqi[12];

int i,j,k;

printf("可以计算公元前的\n请输入年份:");

scanf("%d",&year);

year=year%400;

xingqi[0]=xing(year);

if((year%4==0&&year%100!=0)||year%400==0)

yue[1]=29;

for(i=1;i<12;i++)

xingqi[i]=(xingqi[i-1]+yue[i-1])%7;

for(i=0;i<12;i++)

{

printf(" ---------%d---------\n",i+1);

printf(" 日 一 二 三 四 五 六\n");

for(j=0;j

printf(" ");

j--;

for(k=0;k

{

j++;

if(j%7==0&&j>0)

printf("\n");

printf("%3d",k+1);

}

printf("\n");

printf("\n");

}

}

int run(int year)

{

if((year%4==0&&year%100!=0)||year%400==0)

return 1;

else return 0;

}

int xing(int year)

{

if(year==2008)

return 2;

else if(year>2008)

return (xing(year-1)+run(year-1)+365)%7;

else

return ((xing(year+1)-run(year)-365)%7+7)%7;

}

棗棗棗 ];j二 ———————

#include

void main()

{

int a[100][2]={0};

int i,j,n;

printf ("please input an intenger : \n");

scanf ("%d",&n);

while (n>100||n<=0)

{

printf ("Error input 0

scanf ("%d",&n);

}

printf ("please input %d numbers:\n",n);

for (i=0;i

{

scanf("%d", &a[i][0]);

}

for (i=0;i

for (j=0;j

{

if (a[i][0]>a[j][0])

a[i][1]++;

}

for (i=0;i

printf ("%d ",a[i][1]+1);

}

—————— 三 ——————

#include

#include

main()

{

int a[99]={0},b[99]={0},c[10000]={0};

char d[100]={0};

int i,j,m,n;

printf("请输入乘数：");

scanf("%s",d);

i=strlen(d);

m=i;

for(j=0;j

a[i-j-1]=d[j]-'0';

printf("请输入被乘数:");

scanf("%s",d);

i=strlen(d);

n=i;

for(j=0;j

b[i-j-1]=d[j]-'0';

for(i=0;i

for(j=0;j

c[i+j]=c[i+j]+a[i]*b[j];

for(i=0;i

{

if(c[i]>9)

{

c[i+1]=c[i]/10+c[i+1];

c[i]=c[i]%10;

}