c语言进制转换

通过键盘输入data（字符串型）和进制a，实现各种进制的转换

例如

Sample Input

2 1000 2 1F 16 -1 10 20 3

Sample Output

39 #include<bits/stdc++.h> using namespace std; void inver_arr(char *p) { int temp; int len = strlen(p); int i=0; int j=len-1; for(;i<j;i++,j--) { temp = p[i]; p[i] = p[j]; p[j] = temp; } } int radix(char *p,int a) { int flag = 1; int res=0; int len = strlen(p); if(p[len-1] == '-') { //p[len-1] = '\0'; len = len-1; flag = -1; } else len = strlen(p); printf("%d,%c\n",len,p[0]); for(int i=0;i<len;i++) { if( (p[i]>='0') && (p[i]<='9') ) res = (p[i]-'0')*pow(a,i)+res; else if((p[i]>='A') && (p[i]<='Z')) res = (p[i]-'A'+10)*pow(a,i)+res; else res = (p[i]-'a'+36)*pow(a,i)+res; } return res*flag; } int main() { int n,a,b; char data1[100],data2[100]; scanf("%d",&n); getchar(); while(n--) { scanf("%s%d",data1,&a); getchar(); scanf("%s%d",data2,&b); inver_arr(data1); inver_arr(data2); printf("%d\n",radix(data1,a)+radix(data2,b)); } return 0; } 5