洛谷p1307

#include<stdio.h>#include<string.h>int reverse(char *String,char *Save);int main(){    char String[15],Save[15];    int  num;             scanf("%s",String);         printf("%d",num=reverse(String,Save));return 0;}int reverse(char *String,char *Save){    int num=0,k=0;for(int j=strlen(String)-1;j>=0;j--)        Save[k++]=String[j]; Save[k]='\0';sscanf(Save,"%d",&num);num=(String[0]!='-')?num:-num;  return num;}

心得多刷题,编程就有感觉了,熟记各种技巧,勤练习,将每天刷题养成一个好习惯