西工大C语言程序作业.doc

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1、T021、羊羊聚会#include#includedoublef(doublea,doubleb){doublei;for(i=1;;i++){if(i*b==a){returni;break;}if(i*b>a){return(i-1);break;}}}intmain(){doublex,y,a,b,c,t,m,n,k;scanf("%lf%lf%lf%lf%lf",&x,&y,&a,&b,&c);if(b>a)m=b-a,n=y-x;elsem=a-b,n=x-y;if(n>0

2、)for(t=0;;t++){k=t*m-(c-n);if(k==0){printf("%.0lf",t);break;}if(k>0&&(k-f(k,c)*c)==0){printf("Impossible");break;}}if(m<0)for(t=0;;t++){k=t*n-m;if(k==0){printf("%.0lf",t);break;}if(k>0&&(k-f(k,c)*c)==n){printf("Impossible");break;}}return0;}T022、粒子裂变(1)#include

3、tdio.h>#includeintmain(){intt,i,a=1,b=0;scanf("%d",&t);for(i=1;i<=t;i++){b=3*a+2*b;a=(b+(pow(-1,i))*3)/3;}printf("%d%d",a,b);}(2)#includeintmain(){intn[100],m[100],t,i;n[0]=1;//n[100]数组存储α粒子的数目，初始值为0m[0]=0;//m[100]数组存储β粒子的数目，初始值为1scanf("%d",&t);f

4、or(i=1;i<=t;i++){n[i]=m[i-1];m[i]=3*n[i-1]+2*m[i-1];}printf("%d%d",n[t],m[t]);getchar();getchar();//多读取一个回车可以看到输出结果，直到输出回车后结果才闪过}T023、探索合数世纪#include#includeintmain(){intn,s,i=0,j=0,w,h,k,u=1;scanf("%d",&n);for(i=1;i<=n;i++){for(k=u;;k++){for(s=k*

5、100,h=1;s<=k*100+99;s++){for(j=2,w=1;j<=sqrt(s);j++){w=s%j;if(w==0)break;}if(w!=0){h=0;break;}}if(h==1){u=k;break;}}}printf("%d%d",u*100,u*100+99);return0;}T024、排列1~9#include#includeintmain(){inti,j,k;inta[10],d,fg,n=0,t,m=0;for(i=123;i<=987/3;

6、i++){j=2*i;k=3*i;a[0]=i/100;a[1]=i/10%10;a[2]=i%10;a[3]=j/100;a[4]=j/10%10;a[5]=j%10;a[6]=k/100;a[7]=k/10%10;a[8]=k%10;for(d=0;d<8;d++)for(fg=d+1;fg<9;fg++)if(a[d]==a[fg])n++;if(n==0){for(t=0;t<9;t++)if(a[t]==0)m=1;if(m!=1)printf("%d%d%d",i,j,k);elsem=0;}elsen=

7、0;}printf("%f",(double)clock()/CLOCKS_PER_SEC);return0;}T025、幸运数字7#includeintmain(){inti,N;scanf("%d",&N);for(i=1;i<=N;i++){if(i%7==0)printf("%d",i);else{inttemp=i;while(temp>0){if(temp%10==7){printf("%d",i);break;}temp=temp/10;}}}}T026、1的传奇#includ

8、eintSubSum(int);intPow(inta,intx);intTotalSum(intn);intNumLen(intn);intmain(){intn;scanf("%d",&n);printf("%d",TotalSum(n));return0;}intNumLen(intn){