View Code of Problem 11

#include <stdio.h>
#include <string.h>


int main(){

    int n,i;
    int k = 1;
    while(1){
            scanf("%d", &n);
            getchar();
            if(n == 0){
                break;
            }
            printf("Case #%d:\n",k++);
            while(n--){
                int x1=0, x2=0, y1=0, y2=0, z1=0, z2=0;
                char str[1000];
                gets(str);
                int len = strlen(str);
                for(i=0; i<len; i++){
                    if(str[i] == 'X'){
                        x1 += str[i-2] - '0';
                        x2 = str[i+2] - '0';
                    }
                    if(str[i] == 'Y'){
                        y1 += str[i-2] - '0';
                        y2 = str[i+2] - '0';
                    }
                    if(str[i] == 'Z'){
                        z1 += str[i-2] - '0';
                        z2 = str[i+2] - '0';
                    }

                }
                if( x2 == 0 && x1 !=0 ){
                    printf("%d",x1);
                }else if(x2 != 0 && x1 != 0){
                    printf("%d * X ^ %d",x1*x2,x2-1);
                }
                if(x1 != 0 && y1 != 0){
                    printf(" + ");
                }else if( y2 == 0 && y1 !=0 ){
                    printf("%d",y1);
                }
                if(y2 != 0 && y1 != 0){
                    printf("%d * Y ^ %d",y1*y2,y2-1);
                }
                if((x1 != 0 && z1 != 0) || (y1 != 0 && z1 != 0)){
                    printf(" + ");
                }
                if( z2 == 0 && z1 !=0 ){
                    printf("%d",z1);
                }else if(z2 != 0 && z1 != 0){
                    printf("%d * Z ^ %d",z1*z2,z2-1);
                }
                printf("\n");
            }
    }
    return 0;
}