C语言 紧急！！！！！！

求大神帮忙用C语言写个代码!!!紧急！！~

#includeint main(){int n,w,i; printf("请输入当月天数以及1日是星期几：
"); scanf("%d%d",&n,&w); printf("Mo Tu We Th Fr Sa Su
%*d ",-1+3*w++,1); for(i=2;i<=n;i++) {printf("%2d ",i); if(w++==7) {printf("
"); w=1; } } return 0; }

1: i % 5
2:

3: a[i]

#include<stdio.h>
#include<stdlib.h>
void main()
{
int count;
char mc,cc;
printf("S:剪刀;\nR:石头;\nP:布.\n");
printf("Please input your choose:\n");
scanf("%c",&mc);
count=rand()%3;
if(count==0)
cc='S';
else if(count==1)
cc='R';
else
cc='P';

if(cc==mc)
printf("tie\n");
else if((mc-cc<0)&&(mc-cc!=-3))
printf("you win\n");
else if((mc-cc)==3)
printf("you win\n");
else
printf("computer win\n");
}

//---------------------------------------------------------------------------

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>

char cc(void)
{
int a;
srand(time(0));
if ((a=rand()%100)<33) return 'S';

else if (a<66) return 'R';

else return 'P';
}
int main(void)
{
char choose,cpc;
int a;

puts("Input \'S\' or \'R\' or \'p\'");
choose=toupper(getchar());
cpc=cc();
if (cpc*choose=='S'*'R')
puts(cpc<choose?"computer win":"you win");
else if (cpc*choose=='R'*'P')
puts(cpc<choose?"computer win":"you win");
else puts("tie");
system("pause");
return 0;
}
//---------------------------------------------------------------------------