SUST2017迎新赛
1.先说几句话

哈喽，欢迎17级的学弟学妹们来到陕科大生活和学习~
齐老师让我们现在就帖下这次的代码，方便大家在暑假的学习。希望大家在编程的学习中勇于提问，但是有个前提，一定要先经过自己的思考和相关查阅。只有这样，才能让你的提问变得有意义，对自己的学习有帮助，也能节省被提问人的时间。不懂的话就在评论里问，说明题号并尽量的将问题叙述清楚。
感谢一同提供代码的猪熊山。
2.开始了。

A

#include<stdio.h>
int main()
{
printf("Hello World!");
 return 0;
}

B

#include<stdio.h>
int main()
{
    int a,b;
    while(scanf("%d%d",&a,&b)!=EOF)
    {
        printf("%d\n",a+b);
    }
    return 0;
}

C

#include<stdio.h>
int main(){
    int n,m,i,sum;
    while(scanf("%d",&m)!=EOF){
          sum=0;
          for(i=1;i<=m;i++){
              sum+=i;
          }
        printf("%d\n\n",sum);
    }
    return 0;
}

D

#include<stdio.h>
int main(){
    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF)
    printf("%d\n",a+b);
    return 0;
}

E

#include<stdio.h>
int main(){
    int a,b,num;
    scanf("%d",&num);
    while(num--){
        scanf("%d %d",&a,&b);
        printf("%d\n",a+b);
    }
    return 0;
}

F

#include<stdio.h>
int main(){
    int a,b;
    while(scanf("%d %d",&a,&b)){
        if(a==0 && b==0){
            return 0;
        }
        printf("%d\n",a+b);
    }
    return 0;
}

G

#include <stdio.h>  
#include <string.h>  
int main()  
{  
    char a;  
    int b,i,j,k=0;  
    while((a=getchar())!='@') 
    {  
        ++k;  
        getchar(); 
        scanf("%d",&b);  
        getchar();   
        if(k!=1)
          printf("\n");
        for(i=1;i<b;i++)  
        {  
            for(j=1;j<=b+(i-1);j++)   
             {  
                if(j==b-(i-1)||j==b+(i-1))  
                   printf("%c",a);  
                else   
                   printf(" ");  
             }   
            printf("\n");  
        }         
        for(i=0;i<2*b-1;i++)  
          printf("%c",a);  
        printf("\n");  
    }  
    return 0;  
}  

H

#include<stdio.h>
long long shulie(int n){
    int i;
    long long a[100] = { 0 };
    a[1] = 1, a[2] = 1;
    for ( i = 3; i <= n; i++)
        a[i] = a[i - 1] + a[i - 2];
    return a[n];
}
int main(){
    int n;
    scanf("%d",&n);
    while (n--){
        int a, b;
        scanf("%d%d",&a,&b);
        printf("%lld\n", shulie(b - a + 1));
    }
    return 0;
}

I

#include<stdlib.h>
#include<stdio.h>
int main(){
    int fun(int i);
    int a,b,sum=0,i,flag,ht;
    while(~scanf("%d %d",&a,&b)){
        ht=0; flag=0;
        for(i=a;i<=b;i++){
              sum=fun(i%10)+fun(i/10%10)+fun(i/10/10);
              if(sum==i && flag==0){
                  printf("%d",sum);
                  flag=1;
                  ht=1;
              }else if(sum==i && flag==1) {
                  printf(" %d",sum);
                  ht=1;
              }
        }
        if(ht==0){
            printf("no\n");
        }else  printf("\n");
    }
    return 0;
}
int fun(int i){
    return i*i*i; 
}

J

#include<stdio.h> 
int a[40][40]; 
int main(){ 
    int n; 
    while (scanf("%d", &n) != EOF){ 
        for (int i = 0; i < n; i++){ 
            a[i][0] = 1; a[i][i] = 1; 
        } 
        for (int j = 2; j < n; j++){ 
            for (int k = 1; k <= j; k++){ 
                a[j][k] = a[j - 1][k - 1] + a[j - 1][k]; 
             } 
        } 
        for (int j = 0; j < n; j++){ 
            for (int k = 0; k <= j; k++){ 
                if(k<j) printf("%d ",a[j][k]); 
                else printf("%d", a[j][k]); 
            } printf("\n"); 
        } 
        printf("\n"); 
        } 
       return 0; 
}

K

#include<stdio.h> 
#include<math.h> 
int main() { 
    int a[50][50]; 
    double x,y,aver1[50],aver2[50],sum; 
    int i,j,n,m,count,p; 
    while(~scanf("%d%d",&n,&m)) { 
        count=0; 
        for(i=0;i<n;i++) 
            for(j=0;j<m;j++) 
                scanf("%d",&a[i][j]); 
        for(i=0;i<n;i++) { 
            sum=0; 
            for(j=0;j<m;j++) 
                sum+=a[i][j]; 
            aver1[i]=sum/m; 
        } 
        for(j=0;j<m;j++) { 
            sum=0; 
            for(i=0;i<n;i++) 
                sum+=a[i][j]; 
            aver2[j]=sum/n; 
        }
        for(i=0;i<n;i++) { 
            p=1; 
            for(j=0;j<m;j++) 
                if(a[i][j]<aver2[j]) { p=0; break; } 
            if(p) count++; 
        } 
        for(i=0;i<n-1;i++) 
            printf("%.2lf ",aver1[i]); 
        printf("%.2lf\n",aver1[i]); 
        for(i=0;i<m-1;i++) printf("%.2lf ",aver2[i]); 
        printf("%.2lf\n",aver2[i]); printf("%d\n\n",count); 
       } 
    return 0; 
}

L

#include<stdio.h>
int main(){
    int num=1,count=0,i;
    int cat[101]={0};
    while(scanf("%d",&num),num){
        for(i=0;i<num;i++){
            scanf("%d",&cat[i]);
        }
        for(i=0;i<num;i++){
            while(cat[i]!=0){
             if(cat[i]>=100){
                      cat[i]-=100;
                   count++;
            }else if(cat[i]>=50){
                    cat[i]-=50;
                count++;
            }else if(cat[i]>=10){
                cat[i]-=10;
                count++;
            }else if(cat[i]>=5){
                cat[i]-=5;
                count++;
            }else if(cat[i]>=2){
                cat[i]-=2;
                count++;
            }else if(cat[i]>=1){
                cat[i]-=1;
                count++;
            }    
         }      
    }
      printf("%d\n",count);
      count=0;
    }
    return 0;
}

M

#include<stdio.h> 
int main(){ 
    long long a[60]; 
    a[1] = 1, a[2] = 2, a[3] = 3; 
    for (int i = 4; i <= 55; i++) 
        a[i] = a[i - 3] + a[i - 1]; 
    int n; 
    while (scanf("%d", &n) != EOF){ 
        if (n == 0) break; 
        printf("%lld\n",a[n]); 
    } 
    return 0; 
}

N

#include<stdio.h> 
int main() { 
    int a,b,c=1,i; 
    while((scanf("%d",&a))!=EOF){ 
        c=1; for(i=0;i<a;i++) { 
            scanf("%d",&b); 
            if(b%2!=0) c*=b; 
    }
    printf("%d\n",c); 
    } 
} 

O

#include<stdio.h>
#include<string.h>
int main()
{
    int num;
    char str[11];
    scanf("%d",&num);
    while(num--)
    {
      scanf("%s",str);
      printf("6%s\n",str+6);
    }
    return 0;
}

P

#include<stdio.h>
int main()
{
    int a, b;
    int gcd(int a,int b);
    while(scanf("%d %d",&a,&b)!=EOF)
    {
        int ans;
        ans=a*b/gcd(a,b);
        printf("%d\n",ans);
    }
    return 0;
}
int gcd(int a,int b)
{
   return b==0?a:gcd(b,a%b);
}

Q

#include<stdio.h>
int main(){
    int num;
    scanf("%d",&num);    
    while(num--){
        int f,flag=0,size=0;
        scanf("%d",&f);
         while(f!=1)
         {
               if(f%2!=0)
              {
                    flag=1;
                    if(size==0)
                  {
                          printf("%d",f);
                          size=1;
                  }
                  else printf(" %d",f);
                    f=f*3+1;
              }
             else if(f%2==0){
                 f=f/2;
             }
         }    
         if(flag==0){
             printf("No number can be output !");
         }
         printf("\n");
    }
    return 0;
}

R

#include <stdio.h>  
#include <string.h>  
int main()  
{  
    char a;  
    int b,i,j,k=0;  
    while((a=getchar())!='@') 
    {  
        ++k;  
        getchar(); 
        scanf("%d",&b);  
        getchar();   
        if(k!=1)
          printf("\n");
        for(i=1;i<b;i++)  
        {  
            for(j=1;j<=b+(i-1);j++)   
             {  
                if(j==b-(i-1)||j==b+(i-1))  
                   printf("%c",a);  
                else   
                   printf(" ");  
             }   
            printf("\n");  
        }         
        for(i=0;i<2*b-1;i++)  
          printf("%c",a);  
        printf("\n");  
    }  
    return 0;  
}  

S

#include<stdio.h>
int main()
{
    int num;
    scanf("%d",&num);
    while(num--)
    { 
        int x,y,ans;
        scanf("%d %d",&x,&y);
        if(x==y && x>=0 && y>=0)
        {
            if(x%2==0)ans=2*x;
            else ans=2*x-1;
            printf("%d\n",ans);
        }    
        else if(y==x-2 && x>=2)
        {
            if(x%2==0)ans=2*x-2;
            else ans=2*x-1-2;
            printf("%d\n",ans);
        } 
        else printf("No Number\n");        
    }
    return 0;
}

T

#include<stdio.h>
#include<math.h>
int main(){
    double x1,y1,x2,y2;
    while(scanf("%lf %lf %lf %lf",&x1,&y1,&x2,&y2)!=EOF){
            printf("%.2lf\n",sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)));
    }
    return 0;
}

U

#include<stdio.h>
#define PI 3.1415927
int main(){
    double i;
    while(scanf("%lf",&i)!=EOF){
        printf("%.3lf\n",PI*i*i*i*4.0/3.0);    
    } 
    return 0;
}

V

    #include<stdio.h>  
    int main(){  
        int n,a,b,c,i;  
        double h[100];  
        while(scanf("%d",&n),n){  
            a=0;b=0;c=0;  
            for(i=0;i<n;i++){  
                scanf("%lf",&h[i]);  
            }  
            for(i=0;i<n;i++){  
                if(h[i]>0)a++;  
                if(h[i]==0)b++;  
                if(h[i]<0)c++;  
            }  
            printf("%d %d %d\n",c,b,a);  
        }  
        return 0;  
    }  

W

#include<stdio.h>
int main(){
    int fun(int n);
    int n;
    while(~scanf("%d",&n)){
        printf("%d\n",fun(n));
    }
    return 0;
}
int fun(int n){
    if(n==1){
        return 1;
    }
     return (fun(--n)+1)*2;
}

X

#include<stdio.h>
int main(){
    int num;
    while(~scanf("%d",&num)){
        if(num<0 || num>100){
             printf("Score is error!\n");    
        }
        else if(num>=90 && num<=100){
              printf("A\n");
        }else if(num>=80){
              printf("B\n");
        }else if(num>=70){
              printf("C\n");
        }else if(num>=60){
              printf("D\n");
        }else if(num>=0){
              printf("E\n");    
        }
    }    
    return 0;
}

Y

#include<stdio.h>
int main(){
    int i,j,h,sum2=0,sum1=0,temp;
    while(scanf("%d %d",&i,&j)!=EOF){
        if(i>=j){
            temp=i;
            i=j;
            j=temp;
        }
        for(h=i;h<=j;h++){
            if(h%2==0){
                sum1+=h*h;
            }
            else{
                sum2+=h*h*h;
            }
        }
        printf("%d %d\n",sum1,sum2);
        sum1=0;
        sum2=0;
    }
    return 0;
}

Z

 #include <stdio.h>     
 int main(void)  
 {  
        int n;  
        while(scanf("%d", &n) != EOF) { 
            int score, sum=0, max=0, min=101, i;
            for(i=1; i<=n; i++) {  
                scanf("%d", &score);  
                sum += score;  
                max = (score > max) ? score : max;  
                min = (score < min) ? score : min;  
            }
            printf("%.2f\n", (float)(sum - max - min) / (n -2));  
        }  
        return 0; 
}