哈工大 C語言程序設(shè)計精髓 MOOC慕課 6-12周編程題答案

哈工大C語言程序設(shè)計精髓MOOC慕課6-12周編程題答案哈工大C語言程序設(shè)計精髓MOOC慕課6-12周編程題答案哈工大C語言程序設(shè)計精髓MOOC慕課6-12周編程題答案哈工大C語言程序設(shè)計精髓MOOC慕課6-12周編程題答案編制僅供參考審核批準生效日期地址：電話：傳真:郵編: "/*下面代碼的功能是將百分制成績轉(zhuǎn)換為5分制成績，具體功能是：如果用戶輸入的是非法字符或者不在合理區(qū)間內(nèi)的數(shù)據(jù)（例如輸入的是a,或者102，或-45等），則程序輸出Inputerror!，并允許用戶重新輸入,直到輸入合法數(shù)據(jù)為止，并將其轉(zhuǎn)換為5分制輸出。目前程序存在錯誤，請將其修改正確。并按照下面給出的運行示例檢查程序。*/#include<>#include<>intmain(){charscore[100];intflag=0,i,s;chargrade;printf(""Pleaseinputscore:\n"");while(1){flag=0;scanf(""%s"",score);for(i=0;i<strlen(score);i++){if(score[i]>='0'&&score[i]<='9'){continue;}else{flag=1;break;}}s=atoi(score);if(s<0||s>100||flag==1){printf(""Inputerror!\n"");printf(""Pleaseinputscore:\n"");continue;}else{break;}}s=atoi(score);if(s>=90){grade='A';}elseif(s>=80){grade='B';}elseif(s>=70){grade='C';}elseif(s>=60){grade='D';}else{grade='E';}printf(""grade:%c\n"",grade);return0;}" "#include<>#include<>intmain(){intn,a,i,j;doublep=0,q=0;printf(""Inputa,n:\n"");scanf(""%d,%d"",&a,&n);for(i=1;i<=n;i++){for(j=0,p=0;j<i;j++){p=p+a*pow(10,j);}q=p+q;}printf(""sum=%.0f\n"",q);return0;}" "/*n塊磚(27<n<=77)，36人搬，男搬4，女搬3，兩個小孩抬一塊磚，要求一次搬完，問男人、女人和小孩各需多少人請用窮舉法編程求解,n的值要求從鍵盤輸入。輸出結(jié)果按照男人數(shù)量升序給出（見下面示例3）。程序的運行結(jié)果示例1：Inputn(27<n<=77):28↙men=0,women=4,children=32程序的運行結(jié)果示例2：Inputn(27<n<=77):36↙men=3,women=3,children=30程序的運行結(jié)果示例3：Inputn(27<n<=77):60↙men=2,women=14,children=20men=7,women=7,children=22men=12,women=0,children=24輸入提示：""Inputn(27<n<=77):\n""輸入格式:""%d""輸出格式：""men=%d,women=%d,children=%d\n""*/#include""""main(){printf(""Inputn(27<n<=77):\n"");longn,i,t,s=0;scanf(""%d"",&n);inta,b,c;for(a=0;4*a<=n;a++)for(b=0;4*a+3*b<=n;b++)for(c=0;4*a+3*b+c/2<=n;c+=2)if(4*a+3*b+c/2==n&&c%2==0&&a+b+c==36){printf(""men=%d,women=%d,children=%d\n"",a,b,c);}}" "#include<>intmain(){intyear,month,day;printf(""Inputyear,month:\n"");scanf(""%d,%d"",&year,&month);switch(month){case1:day=31;break;case2:day=28;break;case3:day=31;break;case4:day=30;break;case5:day=31;break;case6:day=30;break;case7:day=31;break;case8:day=31;break;case9:day=30;break;case10:day=31;break;case11:day=30;break;case12:day=31;break;default:day=-1;printf(""Inputerror!\n"");}if((year%4==0&&year%100!=0||year%400==0)&&month==2)day=29;if(day!=-1)printf(""%ddays\n"",day);return0;}" "#include<>unsignedintComputeAge(unsignedintn){}main(){inti,j,k,s=23,n,c,age;scanf(""%d"",&n);printf(""Theperson'sageis%u\n"",8+2*n);}" "#include<>intgys(inta,intb){intr;r=a%b;if(r==0)returnb;elsereturngys(b,r);}main(){printf(""Inputa,b:"");inta,b;scanf(""%d,%d"",&a,&b);if(a<=0||b<=0){printf(""Inputerror!\n"");}elseprintf(""%d\n"",gys(a,b));}" "#include<>intmedian(inta,intb,intc){if(a<b){if(b<c){returnb;}else{returna<cc:a;}程序運行結(jié)果示例1：Inputn:28212Repeateddigit!程序運行結(jié)果示例2：Inputn:12345↙Norepeateddigit!輸入提示：""Inputn:\n""輸入格式:""%ld""輸出格式：有重復(fù)數(shù)字，輸出信息:""Repeateddigit!\n""沒有重復(fù)數(shù)字，輸出信息:""Norepeateddigit!\n""*/#include<>intmain(){intlog[10]={0},a[100];intb,i=0,n,c,d;printf(""Inputn:\n"");scanf(""%d"",&n);while(n!=0){b=n%10;n/=10;a[i]=b;i++;}a[i]=n;intflag=0;for(c=0;c<i;c++)for(d=c+1;d<i;d++){if(a[c]==a[d]){flag=1;break;}}str[i]!=str[i+1]，則計數(shù)器重新初始化為1。遍歷結(jié)束時，函數(shù)返回max的值。程序運行結(jié)果示例1：Inputastring:55↙5:5程序運行結(jié)果示例2：Inputastring:sgf222257↙2:4輸入提示信息：""Inputastring:\n""輸入格式:用gets()輸入字符串輸出格式：""%c:%d\n""*/#include<>#include<>intmain(){chara[80];intb,i,j,t=1,tl,num=0;printf(""Inputastring:\n"");gets(a);for(i=0;i<strlen(a);i++){t=1;for(j=i+1;j<strlen(a);j++){if(a[j]==a[i]){t++;}}if(i==0){tl=t;}else{if(t>tl){tl=t;num=i;}}}printf(""%c:%d\n"",a[num],tl);}" "/*從鍵盤輸入一串字符（假設(shè)字符數(shù)少于8個），以回車表示輸入結(jié)束，編程將其中的數(shù)字部分轉(zhuǎn)換為整型數(shù)并以整型的形式輸出。函數(shù)原型為intMyatoi(charstr[]);其中，形參數(shù)組str[]對應(yīng)用戶輸入的字符串，函數(shù)返回值為轉(zhuǎn)換后的整型數(shù)。解題思路的關(guān)鍵是：1）判斷字符串中的字符是否是數(shù)字字符；2）如何將數(shù)字字符轉(zhuǎn)換為其對應(yīng)的數(shù)字值；3）如何將每一個轉(zhuǎn)換后的數(shù)字值加起來形成一個整型數(shù)。程序運行結(jié)果示例1：Inputastring:7hg09y↙709程序運行結(jié)果示例2：Inputastring:9w2k7m0↙9270程序運行結(jié)果示例3：Inputastring:happy↙0輸入提示信息：""Inputastring:""輸入格式:""%7s""輸出格式：""%d\n""*/#include<>#include<>#include<>intMyatoi(charstr[]){inti,j;for(i=0,j=0;str[i]!='\0';i++){if(str[i]>='0'&&str[i]<='9'){str[j]=str[i];j++;}}str[j]='\0';returnatoi(str);}intmain(){chars[7];printf(""Inputastring:"");scanf(""%7s"",s);printf(""%d"",Myatoi(s));printf(""\n"");return0;}" "/*輸入n個整數(shù)（n從鍵盤輸入，假設(shè)n的值不超過100），按奇偶數(shù)分成兩組并輸出。輸出兩行，第一行為所有奇數(shù)，第二行為所有偶數(shù)，保持數(shù)據(jù)的相對順序與輸入順序相同。函數(shù)原型如下所示：voidSeperate(inta[],intn);

ame);printf(""Inputfinalscore:"");scanf(""%d"",&stu[i].finalScore);printf(""Inputclassscore:"");scanf(""%d"",&stu[i].classScore);getchar();printf(""Classcadreornot(Y/N):"");scanf(""%c"",&stu[i].work);getchar();printf(""StudentsfromtheWestornot(Y/N):"");scanf(""%c"",&stu[i].west);getchar();printf(""Inputthenumberofpublishedpapers:"");scanf(""%d"",&stu[i].paper);stu[i].scholarship=0;if(stu[i].finalScore>80&&stu[i].paper>=1)stu[i].scholarship+=8000;if(stu[i].finalScore>85&&stu[i].classScore>80)stu[i].scholarship+=4000;if(stu[i].finalScore>90)stu[i].scholarship+=2000;if(stu[i].finalScore>85&&stu[i].west=='Y')stu[i].scholarship+=1000;if(stu[i].classScore>80&&stu[i].work=='Y')stu[i].scholarship+=850;printf(""name:%s,scholarship:%d\n"",stu[i].name,stu[i].scholarship);}intts=stu[0].scholarship,k;for(i=1;i<n;i++){if(ts<stu[i].scholarship){k=i;}}printf(""%sgetthehighestscholarship%d\n"",stu[k].name,stu[k].scholarship);/*1)院士獎學金：期末平均成績高于80分（>80），并且在本學期內(nèi)發(fā)表1篇或1篇以上論文的學生每人均可獲得8000元；2)五四獎學金：期末平均成績高于85分（>85），并且班級評議成績高于80分（>80）的學生每人均可獲得4000元；3)成績優(yōu)秀獎：期末平均成績高于90分（>90）的學生每人均可獲得2000元；4)西部獎學金：期末平均成績高于85分（>85）的西部省份學生每人均可獲得1000元；5)班級貢獻獎：班級評議成績高于80分（>80）的學生干部每人均可獲得850元；*/return0;}" "/*請編寫一個簡單的23根火柴游戲程序，實現(xiàn)人跟計算機玩這個游戲的程序。為了方便程序自動評測，假設(shè)計算機移動的火柴數(shù)不是隨機的，而是將剩余的火柴根數(shù)對3求余后再加1來作為計算機每次取走的火柴數(shù)。如果計算機打算移走的火柴數(shù)等于剩下的火柴數(shù)，則將計算機打算移走的火柴數(shù)減1。但是計算機不可以不取，剩下的火柴數(shù)為1時，必須取走1根火柴。假設(shè)游戲規(guī)則如下：1）游戲者開始擁有23根火柴棒；2）每個游戲者輪流移走1根、2根或3根火柴；3）誰取走最后一根火柴為失敗者。程序運行結(jié)果示例1：Gamestart!Note:themaximumnumberis3Pleaseenterthenumberofmatchesyouaremoving:5↙Thenumberyouenterediswrong，pleasere-enter!Pleaseenterthenumberofmatchesyouaremoving:3↙Thenumberofmatchesyouaremovingis:3Thenumberofmatchesleftis:20Thenumberofmatchesthathavebeenmovedbythecomputeris:3Thenumberofmatchesleftis:17Pleaseenterthenumberofmatchesyouaremoving:1↙Thenumberofmatchesyouaremovingis:1Thenumberofmatchesleftis:16Thenumberofmatchesthathavebeenmovedbythecomputeris:2Thenumberofmatchesleftis:14Pleaseenterthenumberofmatchesyouaremoving:2↙Thenumberofmatchesyouaremovingis:2Thenumberofmatchesleftis:12Thenumberofmatchesthathavebeenmovedbythecomputeris:1Thenumberofmatchesleftis:11Pleaseenterthenumberofmatchesyouaremoving:3↙Thenumberofmatchesyouaremovingis:3Thenumberofmatchesleftis:8Thenumberofmatchesthathavebeenmovedbythecomputeris:3Thenumberofmatchesleftis:5Pleaseenterthenumberofmatchesyouaremoving:1↙Thenumberofmatchesyouaremovingis:1Thenumberofmatchesleftis:4Thenumberofmatchesthathavebeenmovedbythecomputeris:2Thenumberofmatchesleftis:2Pleaseenterthenumberofmatchesyouaremoving:1↙Thenumberofmatchesyouaremovingis:1Thenumberofmatchesleftis:1Thenumberofmatchesthathavebeenmovedbythecomputeris:1Thenumberofmatchesleftis:0Congratulations！Youwon!程序運行結(jié)果示例2：332131游戲開始提示信息：""Gamestart!\n""""Note:themaximumnumberis3\n""提示游戲者輸入移動的火柴數(shù)：""Pleaseenterthenumberofmatchesyouaremoving:\n""游戲者輸入錯誤數(shù)據(jù)的提示信息：""Thenumberyouenterediswrong，pleasere-enter!\n""輸入格式:""%d""輸出格式：輸出被游戲者移動的火柴數(shù)：""Thenumberofmatchesyouaremovingis:%d\n""輸出被計算機移動的火柴數(shù)：""Thenumberofmatchesthathavebeenmovedbythecomputeris:%d\n""輸出被游戲者或計算機移動后剩余的火柴數(shù)：""Thenumberofmatchesleftis:%d\n""游戲者獲勝的輸出提示信息：""Congratulations！Youwon!\n""游戲者失敗的輸出提示信息：""I'msorry.Youlost!\n""*/#include<>main(){printf(""Gamestart!\nNote:themaximumnumberis3\n"");inti,j,k,s=23,n,c;while(1){printf(""Pleaseenterthenumberofmatchesyouaremoving:\n"");scanf(""%d"",&n);if(n<=3&&n>=1&&n<=s){;}else{printf(""Thenumberyouenterediswrong，pleasere-enter!\n"");continue;}s-=n;printf(""Thenumberofmatchesyouaremovingis:%d\nThenumberofmatchesleftis:%d\n"",n,s);if(s>0){if(s==3){c=2;}elseif(s==2){c=1;}elseif(s==1){c=1;}else{c=s%3+1;}s-=c;printf(""Thenumberofmatchesthathavebeenmovedbythecomputeris:%d\nThenumberofmatchesleftis:%d\n"",c,s);if(s==0){printf(""Congratulations！Youwon!\n"");break;}}elseif(s==0){printf(""I'msorry.Youlost!\n"");break;}}}" "/*題目內(nèi)容：請輸入星期幾的第一個字母（不區(qū)分大小寫）來判斷一下是星期幾，如果第一個字母一樣，則繼續(xù)判斷第二個字母(小寫)，否則輸出“dataerror”。程序運行結(jié)果示例1：pleaseinputthefirstletterofsomeday:S↙pleaseinputsecondletter:u↙sunday程序運行結(jié)果示例2：pleaseinputthefirstletterofsomeday:F↙friday程序運行結(jié)果示例2：pleaseinputthefirstletterofsomeday:h↙dataerror第一個字母的輸入提示信息