简单题
View Code #include < iostream > #include < cstdio > #include < cstdlib > #include < cstring > using namespace std; string st[ 16 ]; int length[ 16 ]; char a[ 6000000 ]; int getid( char * a){ int len = strlen(a); for ( int i = 0 ; i <= 15 ; i ++ ) if (len == length[i]) return i; return - 1 ;} int main(){ // freopen("t.txt", "r", stdin); st[ 0 ] = " {} " ; length[ 0 ] = 2 ; for ( int i = 1 ; i <= 15 ; i ++ ) { st[i] = " { " + st[ 0 ]; for ( int j = 1 ; j < i; j ++ ) st[i] += " , " + st[j]; st[i] += " } " ; length[i] = st[i].length(); } int t; scanf( " %d " , & t); while (t -- ) { scanf( " %s " , a); int x = getid(a); scanf( " %s " , a); int y = getid(a); cout << st[x + y] << endl; } return 0 ;}