C语言程序设计现代方法（第2版）第6章编程题8

#include 

int main() {
	int i,m,n,j;
	printf("Enter number of days in month:");
	scanf("%d",&m);
	printf("Enter starting day of the week (1=sun, 7=sat):");
	scanf("%d",&n);

	
	for(j=1; j<=(n-1)*4; j++) {
		printf(" ");
	}
	
	for(i=1; i<=m; i++) {
		if(i%7==8-n) {
			printf("%4d\n",i);
		} else {
			printf("%4d",i);
		}
	}
    return 0;
}