信息学奥赛一本通1021-1030

1021`

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
	int a;
	scanf("%d",&a);
	printf("%c",a);
	return 0;
} 

1022

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
	int n;
	cin>>n;
	cout<<bool(n)<<endl;
	return 0;
}

1023

#include"cstdio"
using namespace std;
int main()
{
	printf("%d",sizeof("Hello, World!"));
	return 0;
}

1024

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
	float a;
	scanf("%f",&a);
	printf("%.3f",a);
	return 0;
}

1025

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
	double a;
	scanf("%lf",&a);
	printf("%.12lf",a);
	return 0;
}

1026

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
	char a;
	int b;
	float c;
	double d;
	
	scanf("%c",&a);
	scanf("%d",&b);
	scanf("%f",&c);
	scanf("%lf",&d);
	printf("%c %d %.6f %.6f",a,b,c,d);
	return 0;
}

1027

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
    double n;
    cin>>n;
    printf("%f\n",n);
    printf("%.5f\n",n);
    printf("%e\n",n);
    printf("%g\n",n);
    return 0;
}

1028

#include"iostream"
#include"cstdio"
using namespace std;
int main()
{
    char t;
  	scanf("%c",&t);
  	printf("  %c\n",t);
  	printf(" %c%c%c\n",t,t,t);
  	printf("%c%c%c%c%c\n",t,t,t,t,t);
  	printf(" %c%c%c\n",t,t,t);
  	printf("  %c\n",t);
  	return 0;
}

1029

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
int main()
{ 
    double a,b,r;
    int k;
    scanf("%lf%lf",&a,&b);
    k=a/b;
    r=a-k*b;
    printf("%g",r);
    return 0;
}

1030

#include<cstdio>
using namespace std;
int main()
{
	double r,pai,V;
	pai=3.14;
	scanf("%lf",&r);
	if(r>=0 && r<=100) {
	  V=4/3.0*pai*r*r*r;
	  printf("%.2lf",V);
	}
	else
	printf("Wrong input");
	return 0;
}

感谢大家支持！！！

谢谢！

标签：main,1021,int,scanf,namespace,奥赛,printf,1030,include
来源： https://blog.csdn.net/HybridCOW_HORSE/article/details/123075611