2025年算法竞赛入门第二版习题答案

求 int 的上限与下限#include //运行时间长,请等待

int main(){ int min ,max; FILE *fin,*fout; fin=fopen("min of int

out","wb"); fout=fopen("max of int

out","wb"); for(min=-1;min0;) { max++ ; } fprintf(fout,"%d\n",max-1); fclose(fin); fclose(fout); return 0; }1-1#include int main(){ int a,b,c; scanf("%d%d%d",&a,&b,&c); double average; average=(a+b+c)/3

0; //一定要将 int 型转为浮点型 printf("Average=%

3lf",average ); system("pause"); return 0; }1-2#include int main(){ double f,c; printf("请输入华氏温度 f\n"); scanf("%lf",&f); c=(f-32)*5/9 ; printf("摄氏温度 c=%

3lf\n",c); system("pause"); return 0; }1-3#include int main(){ int n; scanf("%d",&n); printf("%d\n",(1+n)*n/2) ; system("pause"); return 0; }1-4#include #include int main(){ const double pi =4

0*atan(1

0); int n; scanf("%d",&n); while(n>=360) { printf("请输入不不小于 360°的角\n");