C语言实验编程答案.pdf

实验三 顺序结构和输入/输出方法 3-1-（1） #include stdio.h main() int m=345; float n=2.56; printf(m=%d,n*100=%fn,m,n*100); 3-1-（2） #include stdio.h main() double a,b,c,s,v; scanf(%lf%lf%lf, s=a*b; v=a*b*c; printf(%f,%f,%fn,a,b,c); printf(s=%f,v=%fn,s,v); 3-2-（1） #include stdio.h main() int m,n; float x=3.5,y=6.2; scanf(%d,%d, printf(%6d,%6dn,m,n); printf(x=%7.2f,y=%7.2fn,x,y); 3-2-（2） #include stdio.h main() int a,b; long m,n; float p,q; scanf(%d%d, scanf(%f%f, scanf(%ld%ld, printf(a=%d,b=%dn m=%ld,n=%ldn,a,b,m,n); printf(p=%f,q=%fn,p,q); 3-3 #include stdio.h main() int i,j,k,ss,m=1,n=1; scanf(%d,%d, m+=i+; n*=-j; ss=(k=m+2,n-5,k+n); printf(%dn,ss); 3-4 #include stdio.h main() char c1,c2; c1=getchar(); c2=getchar(); putchar(c1); putchar(c2); printf(n); printf(%c,%cn,c1,c2); 3-5 #include stdio.h main() int a=790,m,n; m=a/60; n=a%60; printf(The time is %dh %dminn,m,n); 3-6 #include stdio.h main() float a,b,c,t; scanf(%f%f%f, t=c; c=b; b=a; a=t; printf(a=%f,b=%f,c=%fn,a,b,c); 3-7 #include stdio.h main() double a,m,n; scanf(%lf, m=a*1000; n=(int)m%10; if (n=5) m+=1; m=m/1000; printf(m=%0.2fn,m); 实验四 逻辑运算和判断选取控制 4-1 #include stdio.h main() int a,b; scanf(%d%d, switch (a*a+b*b) case 3: case 1: printf(y=%dn,a+b);break; case 0: printf(y=%dn,b-a);break; switch(a) default: printf(x=%dn,a+b);break; case 10: printf(y=%dn,a-b);break; case 11: printf(x=%dn,a*b);break; switch(a+b) case 10: printf(x=%dn,a+b);break; case 11: printf(y=%dn,a-b);break; 4-2-（1） #include stdio.h main() int x,y; scanf(%d, if (-5x if (x=0) y=x-1; if (0=50) m=c*80; else m=c*90; else if (ct) if (t=50) m=t*80+(c-t)*60; else m=t*90+(c-t)*60; else if (c=50) m=c*80+(t-c)*45; else m=c*90+(t-c)*45; printf(m=%dn,m); 4-5 #include stdio.h main() float x,y,z; scanf(%f%f%f, if(x+y=z|x+z=y|y+z=x) printf(data error! in put again:n); else if (x=y else if (x=y|y=z|z=x) printf(这是等腰三角形n); else printf(这是不等边三角形n); 4-6 #include stdio.h main() int a; scanf(%d, if (a%5=0 else printf(non); 实验五 循环结构 5-2 #include stdio.h main() int c; while (c=getchar()!=n) if(a=c else if (c=y|c=Y|c=z|c=Z) c-=24; putchar(c); putchar(n); 5-3 #include stdio.h main() int i,j; for(i=1;i=4;i+) if (i=1|i=4) for (j=1;j=6;j+) printf( *); else for (j=1;j=6;j+) if (j=1|j=6) printf( *); else printf( ); printf(n); 5-4 #include stdio.h main() int i,j; for (i=0;i10;i+) if (i=0) printf(*); else printf(%4d,i); printf(n); printf(-n); for (j=1;j=9;j+) printf(%d,j); for (i=1;i=1.e-5); printf(e=%f,n=%dn,e,n); 5-6 #include stdio.h main() int i,j,k=0,sum=0,n=1; for(i=1;i=1000;i+) for(j=1;ji;j+) if(i%j=0) k+=j; if (i=k) if(n=1) printf(%d,i); n=2; else printf(+%d,i); sum+=i; k=0; printf(=%dn,sum); 实验六 数 组 6-1 #include stdio.h main() int dengji6; int i,number; for (i=1;i=5;+i) dengjii=0; printf(Enter your numbern); for (i=1;i=20;+i) scanf (%d, if (!number) break; +dengjinumber; printf(nResalt of dengjin); printf(-n); for(i=1;i=5;+i) printf(%4d %dn,i,dengjii); 6-2 #include conio.h #include stdio.h main() int n,k,xx20; int i,j,t; printf(nPlease enter a number:); scanf(%d, printf(nPlease enter %d number:,n); for (i=0;in;i+) scanf(%d, printf(nPlease enter another number:); scanf(%d, for (i=0;ik;i+) t=xx0; for (j=1;jn;j+) xxj-1=xxj; xxn-1=t; printf(nAfter moving:n); for (i=0;in;i+) printf(%3d,xxi); printf(n); 6-3 #include conio.h #include stdio.h main() int i,a100=90,180,270,380,590,530,140,750,380;int b6; for (i=0;i6;i+) bi=0; for (i=0;i9;i+) switch (ai/100) case 0: +b0;break; case 1: +b1;break; case 2: +b2;break; case 3: +b3;break; case 4: +b4;break; default : +b5; printf(The result is:); for (i=0;i6;i+) printf(%3d,bi); printf(n); 6-4 #include stdio.h main() int i,j,m,k,end=0; int a11; for (i=0;i10;i+) scanf(%d, for (j=1;jj;i-) ai=ai-1; aj=k; for(i=0;i11;i+) printf(%5d,ai); printf(n); 6-5 #include stdio.h main() int i,j,k,n=0; char s100; char str10; gets(str); gets(s); for (i=0;stri;i+) if(stri=s0) for(j=i+1,k=1;sk;j+,k+) if (strj=sk) continue; else break; if(!sk) n+; printf(%s can be find %2dn,s,n); 实验七 字符处理 7-2 #include stdio.h main() char s180,s280; int i,k; printf(Input string s1 and s2 :n); gets(s1); gets(s2); i=0; while(s1i!=0) i+; k=0; while(s2k!=0) s1i=s2k; i+; k+; s1i=0; printf(s1+s2=%sn,s1); 7-3 #include stdio.h main() int ch=0,sh=0,other=0; char c; while(c=getchar()!=!) if(a=c else if(0=c else other+; printf(ch=%d-sh=%d other=%dn,ch,sh,other); 7-4 #include stdio.h main() int i; char s=This is a program; for(i=0;i30;i+) if(si=a) break; printf(The first (a) at%2dn,i); 7-5 #include stdio.h main() char s; while (s=getchar()!=) if(A=s if(a=s else if (s=x|s=y|s=z) s-=23; putchar(s); putchar(n); 7-6 #include stdio.h main() int i,j; char s1100; char s2100; printf(Enter the string s1 and s2:n); gets(s1); gets(s2); for(i=0;ib? a:b; return(c); main() extern int a,b; printf(%dn,max(a,b); int a=3,b=5; 8-2 #include stdio.h int prime(int n) int i; for(i=2;in/2) return (1); main() int a,b; scanf(%d, b=prime(a); if (b=0) printf(%d is not a shushun,a); if (b=1) printf(%d is a shushun,a); 8-3 #include stdio.h int jisheng (int a) int b=1,i; for(i=1;in) printf(The munber is wrong, please put againn); else s=jisheng(n)/(jisheng(n-m)*jisheng(m); printf(%dn,s); 实验九 指 针 9-1 #include stdio.h main() int j,k; int a12,*p; p= for(k=0;k12;k+) scanf(%d,p+); p=a; for(j=0;j12;j+) printf(%5d,*p+); if(j+1)%4=0) printf(n); 9-3 #include stdio.h main() int a10; int *p,i; p=a; for(i=0;i10;i+) *p=i; p+; p=a; （添加内容） for(i=0;i10;i+,p+) printf(%2d,*p); printf(n); 9-4 #include stdio.h int table10; void lookup(int*t,int*a,int n) int k; *a=t0