2012 素数判定
1 #include <stdio.h>
2 #include <math.h>
3
4 int main()
5 {
6 int x,y,i,j,a,flag;
7 while(scanf("%d %d",&x,&y)!=EOF){
8 flag = 0;
9 if(x==0&&y==0){break;}
10 for(i=x;i<=y;i++){
11 a = i*i+i+41;
12 for(j=2;j<a/2;j++){
13 if(a%j==0){flag++;break;}
14 }
15 if(flag!=0){break;}
16 }
17 if(flag==0){printf("OK\n");}
18 else{printf("Sorry\n");}
19 }
20 }
2013 蟠桃记
1 #include <stdio.h>
2
3 int main()
4 {
5 int n,sum;
6 while(scanf("%d",&n)!=EOF){
7 sum = 1;
8 while(--n){
9 sum = (sum+1)*2;
10 }
11 printf("%d\n",sum);
12 }
13 }
2014 青年歌手大奖赛_评委会打分
1 #include <stdio.h>
2
3 int main(){
4 int arr[101];
5 int n,i,j,k,temp;
6 double sum,p;
7 while(scanf("%d",&n)!=EOF){
8 sum = 0;
9 for(i=0;i<n;i++){
10 scanf("%d",&arr[i]);
11 }
12
13 for(i=0;i<n-1;i++){
14 for(j=0;j<n-1-i;j++){
15 if(arr[j]>arr[j+1]){
16 temp = arr[j];
17 arr[j] = arr[j+1];
18 arr[j+1] = temp;
19 }
20 }
21 }
22
23 for(k=1;k<n-1;k++){sum += arr[k];}
24 p = sum/(n-2);
25 printf("%.2lf\n",p);
26 }
27 }
2015 偶数求和
1 #include <stdio.h>
2
3 int main(){
4 int n,m,i,j,a,count,sum;
5 int s[101],c[101];
6 while(scanf("%d %d",&n,&m)!=EOF){
7 a = 0;
8 count = 0;
9 for(i=1;i<=n;i++){a += 2;s[i] = a;}
10 for(i=1;i<=n;i++){
11 if(i%m==0){
12 sum = 0;
13 for(j=i-m+1;j<=i;j++){sum += s[j];}
14 c[count] = sum/m;
15 count++;
16 }
17 if(i==n&&i%m!=0){
18 sum = 0;
19 for(j=i-(n%m)+1;j<=i;j++){sum += s[j];}
20 c[count] = sum/(n%m);
21 count++;
22 }
23 }
24 for(i=0;i<count;i++){
25 if(i==count-1){printf("%d\n",c[i]);}
26 else{printf("%d ",c[i]);}
27 }
28 }
29 }
2016 数据的交换输出
1 #include <stdio.h>
2
3 int main(){
4 int s[101];
5 int n,i,flag,temp,a;
6 while(scanf("%d",&n)!=EOF){
7 if(n==0){break;}
8 for(i=0;i<n;i++){
9 scanf("%d", &s[i]);
10 }
11 temp = 10000;
12 for(i=0;i<n;i++){
13 if(temp>s[i]){flag=i;temp = s[i];}
14 }
15 a = s[0];
16 s[0] = s[flag];
17 s[flag] = a;
18 for(i=0;i<n;i++){
19 if(i==n-1){printf("%d\n", s[i]);}
20 else{printf("%d ",s[i]);}
21 }
22 }
23 }
2017 字符串统计
1 #include <stdio.h>
2 #include <string.h>
3
4 int main(){
5 char s[10000];
6 int n,len,i,count;
7 while(scanf("%d", &n)!=EOF){
8 getchar();
9 while(n--){
10 count = 0;
11
12 gets(s);
13 len = strlen(s);
14
15 for(i=0;i<len;i++){
16 if(s[i]>='0'&&s[i]<='9'){count++;}
17 }
18 printf("%d\n",count);
19 }
20
21 }
22 }
2018 母牛的故事
1 #include <stdio.h>
2
3 int main(){
4 int n,i;
5 int s[55];
6 while(scanf("%d",&n)!=EOF){
7 if(n==0){break;}
8 s[1]=1;s[2]=2;
9 s[3]=3;s[4]=4;
10 for(i=5;i<=n;i++){
11 s[i] = s[i-1]+s[i-3];
12 }
13 printf("%d\n",s[n]);
14 }
15 }
2019 数列有序!
1 #include <stdio.h>
2
3 int main(){
4 int s[101],c[101];
5 int n,x,i,j;
6 while(scanf("%d %d",&n,&x)!=EOF){
7 if(n==0&&x==0){break;}
8 for(i=0;i<n;i++){scanf("%d", &s[i]);}
9 for(i=0;i<n;i++){
10 c[i] = s[i];
11 if(s[i]<=x&&x<=s[i+1]){
12 c[i+1] = x;
13 for(j=i+2;j<n+1;j++){c[j]=s[j-1];}
14 break;
15
16 }
17 }
18 for(i=0;i<n+1;i++){
19 if(i==n){printf("%d\n",c[i]);}
20 else{printf("%d ",c[i]);}
21 }
22 }
23 }
2020 绝对值排序
1 #include <stdio.h>
2 int ab(int a){
3 if(a<0){a=-a;}
4 return a;
5 }
6
7 int main(){
8 int n,i,j,temp;
9 int s[101];
10 while(scanf("%d",&n)!=EOF){
11 if(n==0){break;}
12 for(i=0;i<n;i++){scanf("%d", &s[i]);}
13 for(i=0;i<n-1;i++){
14 for(j=0;j<n-1-i;j++){
15 if(ab(s[j]) < ab(s[j+1])){
16 temp = s[j];
17 s[j] = s[j+1];
18 s[j+1] = temp;
19 }
20 }
21 }
22 for(i=0;i<n;i++){
23 if(i==n-1){printf("%d\n",s[i]);}
24 else{printf("%d ",s[i]);}
25 }
26 }
27 }
2021 发工资咯：）
1 #include <stdio.h>
2
3 int main(){
4 int s[101];
5 int n,i,sum,temp,count;
6 while(scanf("%d",&n)!=EOF){
7 if(n==0){break;}
8 count = 0;
9 for(i=0;i<n;i++){scanf("%d",&s[i]);}
10 for(i=0;i<n;i++){
11 sum = 0;
12 if(s[i]/100!=0){sum += s[i]/100;}
13 if((s[i]%100)/50!=0){sum += (s[i]%100)/50;}
14 if(s[i]%100%50/10!=0){sum += s[i]%100%50/10;}
15 if(s[i]%100%50%10/5!=0){sum += s[i]%100%50%10/5;}
16 if(s[i]%100%50%10%5/2!=0){sum += s[i]%100%50%10%5/2;}
17 sum += s[i]%100%50%10%5%2;
18 count += sum;
19 }
20 printf("%d\n",count);
21 }
22 }
