《C语言编程练习》PPT课件.ppt

*ProgrammingExercisesNorthChinaElectricPowerUniversity*Chapter4ManagingInputandOutputOperations :(a)(b)(c)*Chapter4ManagingInputandOutputOperations () { floatx,y; printf("Pleaseinputthevalueofxandy:\n"); printf("x="); scanf("%f",&x); printf("y="); scanf("%f",&y); printf("(a)(x+y)/(x-y)=%f\n",(x+y)/(x-y)); printf("(b)(x+y)/2=%f\n",(x+y)/2); printf("(c)(x+y)(x-y)=%f\n",(x+y)*(x-y));}*Chapter4ManagingInputandOutputOperations ,roundthemofftothenearestintegersandprintouttheresultsinintegerform: - -*Chapter4ManagingInputandOutputOperations () { floatx; printf("Pleaseinputthenumber:"); scanf("%f",&x); printf("Thenumberis:%.0f\n",x);}*Chapter4ManagingInputandOutputOperations -digitintegersandprinttheproductofintegersasshownbelow. 45 × 37 7×45is 315 3×45is 135 Addthem 1665*Chapter4ManagingInputandOutputOperations () { intx,y,m,n; printf("Pleaseinput2two-digitintegers:"); scanf("%d%d",&x,&y); printf("\n\t\t%6d\n\t\t*%5d\n",x,y); printf("\t\t______\n"); printf("%d*%dis\t\t%6d\n",y%10,x,y%10*x); printf("%d*%dis\t\t%5d\n",y/10,x,y/10*x); printf("\t\t______\n"); printf("Addthem\t%6d\n",y*x); printf("\t\t______\n");}*Chapter5 DecisionMakingandBranching 'odd'of'even'andprintthemessageNUMBERISEVENor NUMBERISODD (a)withoutusingelseoption,and (b)withelseoption.*Chapter5 DecisionMakingandBranching () /*(a)*/{ intn; printf("Pleaseinputaninteger:"); scanf("%d",&n); if(n%2) printf("%dISODD\n",n); if(n%2==0) printf("%dISEVEN\n",n); }*Chapter5 DecisionMakingandBranching () /*(b)*/{ intn; printf("Pleaseinputaninteger:"); scanf("%d",&n); if(n%2) printf("%dISODD\n",n); else printf("%dISEVEN\n",n); }