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11.д³öÏÂÃæ³ÌÐòµÄÊä³ö½á¹û¡£

#include main()

{char a=9,b=020;

printf(¡°%o\\n¡±, ~a&b<<1); }

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12.ÔĶÁÒÔϳÌÐò£¬¸ø³öÕýÈ·µÄÔËÐнá¹û£º #i nclude void main() {union example {struct

{int x; int y; }in; int a; int b; }e; e.a=1; e.b=2;

e.in.x=e.a*e.b; e.in.y=e.a+e.b;

printf(\printf(\}

¸Ã³ÌÐòµÄÔËÐнá¹ûÊÇ£º4,8 4,4

Áù¡¢±à³ÌÐòÌâ 1.±àÒ»³ÌÐò£¬Çóa=123,b=456µÄºÍsum£¬Êä³öÐÎʽΪ£º123+456=579¡£ main()

{int a,b,sum; a=123; b=456; sum=a+b;

printf(\}

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2. ±àÒ»³ÌÐò´Ó¼üÅÌÊäÈëÒ»¸öʱ¼ät£¬Çóh=1/2gtµÄÖµ¡£Êä³ö¸ñʽ2

Ϊ£ºt=?£¬h=?¡£ÒªÇó±£ÁôһλСÊý¡£ #include #define G 9.8 main()

{float t,h;

printf(¡°Input t:¡±); scanf(¡°%f¡±, &t); h=1.0/2*G*t*t;

printf(¡°t=%.1f, h=%.1f\\n¡±,t,h); } 3.±àÒ»³ÌÐòÇó1!+3!+5!+7!+9!¡£ #include main() {

int i,j,t,s; s=0;

for(i=1;i<=9;i=i+2) { t=1;

for(j=1;j<=i;j++) t=t*j; s=s+t; }

printf(\}

4.±àÒ»³ÌÐòÇó1+£¨1+2£©+£¨1+2+3£©+?+£¨1+2+3+?10£©¡£½â·¨1£º

#include main() {

int i,j,t,s; s=0;

for(i=1;i<=10;i++) { t=0;

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for(j=1;j<=i;j++) t=t+j; s=s+t;

}

printf(\}

½â·¨2£º

#include main() {

int i,t,s; s=0;

for(i=1;i<=10;i++) {

t=t+j; s=s+t; }

printf(\}

5.Ò»¸öÈýλµÄËØÊý£¬ÈôÆä¸öλºÍ°ÙλÊý×ÖÏàͬ£¬ÔòÕâ¸öÊý½Ð×ö»ØÎÄÊý£¬´òÓ¡ÕâЩ»ØÎÄÊý¡£ ½â·¨1£º²»Óú¯Êý #include #include main() {

int n,i,j,x,y,z,loop; for(n=101;n<=999;n++) {

x=n/100;

y=(n-x*100)/10; z=n; j=sqrt(n);

for(i=2;i<=j;i++) if(n%i==0) break; if(i>=j+1) loop=1; else loop=0;

if( (x= =z)&&loop= =1 ) printf(\

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}

printf(\

}

½â·¨2£ºÓú¯Êý #include #include

int ZS(int n) /*ÅÐËØÊýµÄº¯Êý*/ {

int z,i,j=sqrt(n),temp; for(i=2;i<=j;i++) if(n%i==0) break;

if(i>=j+1) temp=1; else temp=0; return temp; }

int HWS(int n) /*ÅлØÎÄÊýµÄº¯Êý*/ {

int x,y,z,loop,c; x=n/100;

y=(n-x*100)/10; z=n; c=ZS(n);

if( (x= =z)&& c ) loop=1; else loop=0; return loop; }

main() {

int n;

for(n=100;n<=999;n++)

if(HWS(n)) printf(\printf(\} 6.Óõݹ鷽·¨±à³ÌÐòÇó½âÏ°Ìâ6.10¡ªºï×Ó³ÔÌÒ×ÓÎÊÌâ¡£#include int num(int n)

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