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# å®žéªŒ - s if (num<50) if (num<10)

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s _2 main() {int num,price,total; scanf("%d",&num); if (num<10) price=25; if (num>=10&&num<50) price=24; if (num>=50&&num<100) price =22; if (num>=100) price=20; total=price*num; printf("\ntotal cost=%d\n",total); } if (num<10) price=25; else if (num<50) price=24; else if (num<100) price =22; else price=20; if (num<50) if (num<10) price=25; else price=24; else if (num<100) price=22; else price=20;

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s _2_2 main() {int num,i,price,total; scanf("%d",&num); if (num>=100) i=10; else i=num/10; switch (i) {case 0: price=25;break; case 1: case 2: case 3: case 4: price=24;break; case 5: case 6: case 7: case 8: case 9: price=22;break; case 10: price=20;break; } total=price*num; printf("\ntotal cost= %d\n",total);}
s _3 main() {int i; float x,y; for(i=0;i<=3;i++) {scanf("%f",&x); if (x<1) y=x*x; if (x>=1&&x<10) y=3*x-2; if (x>=10) y=x*x*(x-10)+28; printf("y=%-10.3f\n",y); } }

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s _4 main() {long num; int i,a,b,c,d,e; scanf("%ld",&num); else if (num>999) i=4; else if (num>99) i=3; else if (num>9) i=2; else i=1; switch (i) {case 5: a=num/10000; printf("%d,",a); num=num%10000; case 4: b=num/1000; printf("%d,",b); num=num%1000; case 3: c=num/100; printf("%d,",c); num=num%100; case 2: d=num/10; printf("%d,",d); num=num%10; case 1: e=num; printf("%d\n",e);} switch (i) {case 5: printf(” %d\r",a); case 4: printf(" %d,\r",b); case 3: printf(" %d,\r",c); case 2: printf(" %d,\r",d); case 1: printf("%d,\n",e); } } switch (num) {case (num>9999): i=5;break; case (num>999&&num<10000):i=4;break; case (num>99&&num<1000): i=3;break; case (num>9&&num<100): i=2;break; case (num>=0&&num<10): i=1;break; }
s _1 main() {float e=1,t; int i; long m=1; i=1; do {m=m*i; t=1.0/m; e=e+t; i=i+1; } while (t>1e-7); printf("e=%f\n", e); } main() {float e=1,t; int i; long m=1; i=1;t=1; while (t>1e-7) {m=m*i; t=1.0/m; e=e+t; i=i+1; } printf("e=%f\n", e); } main() {float e=1,t; int i; long m=1; for(i=1,t=1;t>1e-7; i++) {m=m*i; t=1.0/m; e=e+t; } printf("e=%f\n",e); }

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s _2 main() {int i,a,b,c; for (i=100;i<1000;i++) {a=i/100;b=i%100/10;c=i%10; if (i%5==0 && a+b+c == 9) printf("%d,",i); } } if (i%5==0&&i/100+i%100/10+i%10==9) printf(“%d”,i);
s _3 #include "math.h" main() {int i,j,k,m,l,h; for (i=96;i<=100;i=i+2) {l=i/2; for (j=2;j<l;j++) {k=sqrt(j); for (m=2;m<=k;m++) if (j%m==0) break; if (m>=k+1) {h=i-j; k=sqrt(h); for (m=2;m<=k;m++) if (h%m==0) break; if (m>=k+1) {printf("%d=%d+%d\n", i,j,h); break;} #include "math.h" main() {int i,m,n,k1,k2,h1,h2; for (i=96;i<=100;i=i+2) {for (m=2;m<i;m++) {n=i-m; k1=sqrt(n);k2=sqrt(n); for (h1=2;h1<=k1;h1++) if (m%h1==0) break; for (h2=2;h2<=k2;h2++) if (n%h2==0) break; if (h1>=k1+1&&h2>=k2+1) {printf("%d=%d+%d\n", i,m,n); break;} } } }

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s _4 main() {int a=0,b=0,i; for(i=1;i<=100;i=i+2) {a=a+i;b=b+i+1;} printf("odd-sum=%d,even sum=%d\n",a,b); }
s _4 #include "stdio.h" main() {int s,n=0,m=0,b=0; char c1,c2; while ((c1=getchar())!='Q') if (c1!='\n') {if (c1>='0' && c1<='9') if (b==0) n=n*10+c1-'0'; else m=m*10+c1-'0'; else {c2=c1; b=1;} } else {switch(c2) {case '-':s=n-m; break; case '+':s=n+m; break; case '*':s=n*m; break; case '/':s=n/m; break; } printf("result=%d\n",s); n=0;m=0;b=0; } }

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s _1 main() {static int a[10]={0,3,4,6,8,10}; int i,j,k,t,x,end; end=5; for(i=1;i<5;i++) {scanf("%d",&x); if (x>=a[end]) {a[end+1]=x; end++; } else for(j=0;j<=end;j++) if (x<a[j]) { for (k=j;k<=end;k++) {t=a[k]; a[k]=x; x=t; } end++; break; } } for (j=0;j<10;j++) printf("%d ",a[j]); printf("\n"); } for(k=end+1;k>j;k--) a[k]=a[k-1]; a[j]=x; if(j>=end+1) {a[end]=x; end++;}
s _2 main() {static int a[4][4]={{3,6,4,6},{8,3,1,3}, {4,7,1,2},{2,9,5,3}}; int i,sum=0; for (i=0;i<4;i++) sum=sum+a[0][i]+a[3][i]; for (i=1;i<3;i++) sum=sum+a[i][0]+a[i][3]; printf("sum=%d\n",sum); }

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main() {static float score[5][4]={{76,80,90},{90,65,77},{63,55,70}, {90,92,97},{73,69,82}}; char name[5][6]={"stud1","stud2","stud3", "stud4","stud5"}; int i,j,k; char ct; float sum,t; for (i=0;i<5;i++) {sum=0.0; for (j=0;j<3;j++) sum=sum+score[i][j]; score[i][3]=sum/3; } 2 _3
for (j=0;j<=3;j++) for (i=0;i<=3-j;i++)

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## This note was uploaded on 11/08/2009 for the course ISYS 2350 taught by Professor Joserf during the Three '08 term at University of Sydney.

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å®žéªŒ - s if (num<50) if (num<10)

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