1518.cpp

这是哈尔滨工业大学acmOJ的源代码

/*  This Code is Submitted by wywcgs for Problem 1518 on 2005-03-23 at 21:20:57 */ 
#include <stdio.h>
#include <string.h>

int main()
{
    char equ[50], fir[7], *fCh;
    long a, b, c;
    int i, j, ten[7];
    
    ten[0] = 1;
    for(i = 1; i < 7; i++){
        ten[i] = ten[i-1] * 10;
    }    
    while(gets(equ) != NULL){
        if(!strcmp(equ, "0+0=0")){
            printf("True\n");
            return 0;
        }else{
            for(i = 0; i < 7; i++){
                fir[i] = equ[i];
                if(fir[i] == '+'){
                    break;
                }
            }
            a = 0;
            for(j = i-1; j >= 0; j--){
                a += (fir[j] - '0') * ten[j];
            }
            fCh = strchr(equ, '+');
            fCh++;
            for(i = 0; i < 7; i++){
                fir[i] = fCh[i];
                if(fir[i] == '='){
                    break;
                }
            }
            b = 0;
            for(j = i-1; j >= 0; j--){
                b += (fir[j] - '0') * ten[j];
            }
            fCh = strchr(equ, '=');
            fCh++;
            for(i = 0; i < 7; i++){
                fir[i] = fCh[i];
                if(fir[i] == '\0'){
                    break;
                }
            }
            c = 0;
            for(j = i-1; j >= 0; j--){
                c += (fir[j] - '0') * ten[j];
            }
            if(a + b == c){
                printf("True\n");
            }else{
                printf("False\n");
            }
        }
    }
    
    return 0;
}