View Code of Problem 7

#include <stdio.h>
int main(){
	int T;
	scanf("%d", &T);
	while(T>0){
		int l =0;
		int n;
		scanf("%d",&n);
		int a[n];
		int b[n];
		for(int i=0 ;i<n;i++){
			scanf("%d=%d",&a[i],&b[i]);
		}
		int m;
		scanf("%d",&m);
		int c[m];
		for(int l=0;l<m;l++){	
	     	scanf("%d",&c[l]);
		}

		for(int k= 0;k<m;k++){
			bool _flag;
			for(int j=0;j<m;j++){
				_flag = false;
				if(c[k]==a[j]){
				    _flag = true;
				    printf("%d\n",b[j]);
				    break;
				}else if(c[k] == b[j]){
					_flag = true;
				    printf("%d\n",a[j]);
					break;
				}
			}
			if(_flag == false){
		       printf("UNKNOW\n");
			}
		}
		T--;
		printf("\n");
	}
}

/*
Main.c: In function 'main':
Main.c:22:4: error: unknown type name 'bool'
    bool _flag;
    ^
Main.c:24:13: error: 'false' undeclared (first use in this function)
     _flag = false;
             ^
Main.c:24:13: note: each undeclared identifier is reported only once for each function it appears in
Main.c:26:17: error: 'true' undeclared (first use in this function)
         _flag = true;
                 ^
Main.c:6:7: warning: unused variable 'l' [-Wunused-variable]
   int l =0;
       ^
*/