1025.cpp

来自「平时acm训练时ac的源代码」· C++ 代码 · 共 36 行

#include<math.h>
#include<stdio.h>
void main(){
	FILE *in,*out;
	int i,j,k,c;

	int a[102];
	in=fopen("in.txt","r");
	out=fopen("out.txt","w");
	if(in==NULL)
		printf("the file can't open");
	if(out==NULL)
		printf("the file can't write");
	fscanf(in,"%d",&k);
	for(i=1;i<=k;i++)
	  fscanf(in,"%d",&a[i]);
	for(i=1;i<=k;i++)
		for(j=1;j<=k;j++)
			if(a[i]<a[j])
			{
				c=a[i];
				a[i]=a[j];
				a[j]=c;
			}
    c=0;
	 
		k=k/2+1;
        
		for(i=1;i<=k;i++)
	       c=c+a[i]/2+1;
	fprintf(out,"%d",c);
}