競技プログラムになれるための例題問題集らしい。
中学生くらいから対象？
Getting Started - X Cubic
#include<stdio.h>
int main(){
int x;
scanf("%d",&x);
printf("%d\n",x*x*x);
return 0;
}
Getting Started - Rectangle
#include<stdio.h>
int main(){
int a,b;
scanf("%d %d",&a,&b);
printf("%d %d\n",a*b,2*a+2*b);
}
Branch on Condition - Small, Large, or Equal
#include<stdio.h>
int main(){
int a,b;
scanf("%d %d",&a,&b);
printf("a %s b\n",a<b?"<":a>b?">":"==");
}
Branch on Condition - Range
#include<stdio.h>
int main(){
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%s\n",a<b && b<c ? "Yes":"No");
}
Branch on Condition - Sorting Three Numbers
#include<stdio.h>
int main(){
int a,b,c,t;
scanf("%d %d %d",&a,&b,&c);
if(a>b)t=a,a=b,b=t;
if(b>c)t=b,b=c,c=t;
if(a>b)t=a,a=b,b=t;
printf("%d %d %d\n",a,b,c);
}
Repetitive Processing - Print Many Hello World
#include<stdio.h>
int main(){
for(int i=0;i<1000;i++){
printf("Hello World\n");
}
}
Repetitive Processing - Print Test Cases
#include<stdio.h>
int main(){
int i=1,n;
while(scanf("%d",&n)!=EOF){
if(n==0)break;
printf("Case %d: %d\n",i++,n);
}
}
Repetitive Processing - Swapping Two Numbers
#include<stdio.h>
int main(){
int a,b,t;
while(scanf("%d %d",&a,&b)!=EOF){
if(a==0&&b==0)break;
if(a>b)t=a,a=b,b=t;
printf("%d %d\n",a,b);
}
}
Computation - A / B Problem
#include<stdio.h>
int main(){
int a,b;
scanf("%d %d",&a,&b);
printf("%d %d %lf\n",a/b,a%b,(double)a/b);
}
Computation - Circle
#include<stdio.h>
#include<math.h>
int main(){
double r;
scanf("%lf",&r);
printf("%lf %lf\n",r*r*M_PI,2*r*M_PI);
}
Computation - Simple Calculator
#include<stdio.h>
int main(){
int a,b,c;
char op;
while(scanf("%d %c %d",&a,&op,&b)!=EOF){
if(op=='?')break;
if(op=='+')c=a+b;
if(op=='-')c=a-b;
if(op=='*')c=a*b;
if(op=='/')c=a/b;
printf("%d\n",c);
}
}
