//online parser:
https://www.bccn.net/run/
程序代码：
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define TOKEN "X"
//end of TOKEN
#define Lovely_Elean_Formula "1"TOKEN"10"TOKEN"3"TOKEN"3.33"TOKEN
//4 future doing
//#define Grandpa_V_Formula "128"TOKEN"e"TOKEN"980"TOKEN"2116"TOKEN
static int rrem[32];
void* f_add(void *x, void *y, unsigned char type)
{
void *ret = rrem;
#define V_CHR 0
#define V_INT 1
#define V_FLT 2
#define V_DBL 3
#define LOG_SYM(_s) putchar(_s);
#define LOG_SYM_ADD LOG_SYM('+')
LOG_SYM_ADD;
switch (type) {
#define ADD_S +
#define cast2type_add(_r, _x, _y, _t) \
*(_t *)(_r) = *(_t *)(_x) ADD_S *(_t *)(_y)
case V_CHR:
cast2type_add(ret, x, y, char);
break;
case V_INT:
cast2type_add(ret, x, y, int);
break;
case V_FLT:
cast2type_add(ret, x, y, float);
break;
case V_DBL:
cast2type_add(ret, x, y, double);
break;
}
return ret;
}
void* f_sub(void *x, void *y, unsigned char type)
{
void *ret = rrem;
#define LOG_SYM_SUB LOG_SYM('-')
LOG_SYM_SUB;
switch (type) {
#define SUB_S -
#define cast2type_sub(_r, _x, _y, _t) \
*(_t *)(_r) = *(_t *)(_x) SUB_S *(_t *)(_y)
case V_CHR:
cast2type_sub(ret, x, y, char);
break;
case V_INT:
cast2type_sub(ret, x, y, int);
break;
case V_FLT:
cast2type_sub(ret, x, y, float);
break;
case V_DBL:
cast2type_sub(ret, x, y, double);
break;
}
return ret;
}
void* f_mul(void *x, void *y, unsigned char type)
{
void *ret = rrem;
#define LOG_SYM_MUL LOG_SYM('*')
LOG_SYM_MUL;
switch (type) {
#define MUL_S *
#define cast2type_mul(_r, _x, _y, _t) \
*(_t *)(_r) = *(_t *)(_x) MUL_S *(_t *)(_y)
case V_CHR:
cast2type_mul(ret, x, y, char);
break;
case V_INT:
cast2type_mul(ret, x, y, int);
break;
case V_FLT:
cast2type_mul(ret, x, y, float);
break;
case V_DBL:
cast2type_mul(ret, x, y, double);
break;
}
return ret;
}
void* f_div(void *x, void *y, unsigned char type)
{
void *ret = rrem;
#define LOG_SYM_DIV LOG_SYM('/')
LOG_SYM_DIV;
switch (type) {
#define DIV_S /
#define cast2type_div(_r, _x, _y, _t) \
*(_t *)(_r) = *(_t *)(_x) DIV_S *(_t *)(_y)
case V_CHR:
cast2type_div(ret, x, y, char);
break;
case V_INT:
cast2type_div(ret, x, y, int);
break;
case V_FLT:
cast2type_div(ret, x, y, float);
break;
case V_DBL:
cast2type_div(ret, x, y, double);
break;
}
return ret;
}
unsigned char* parse_expr(unsigned char *expr, int *vpos)
{
unsigned char *ret = (unsigned char *)rrem;
while (expr) {
*ret++ = *expr++;
if ('X' == *expr) {
//set tail
*ret = 0;
//return nwpos
*vpos = ret - (unsigned char *)rrem + 1;
return (unsigned char *)rrem;
}
}
return (unsigned char *)rrem;
}
typedef void* (*math_fund)(void*, void*, unsigned char);
static math_fund fund_tbl[4] = {
f_add, f_sub, f_mul, f_div
};
static char optr_tbl[4] = {
'+', '-', '*', '/'
};
enum Lv_Elean{EPA = 0, EPB, EPC};
int main(int argc, char *argv[]);
int Miss_Eleans_puzzle_game(double *op, double res)
{
int i = 0;
double v_exp;
#define F_TBL_LEN sizeof(fund_tbl) / sizeof(fund_tbl[0])
#define USR_SCOUT_DEPTH 10
while (i++ < USR_SCOUT_DEPTH) {
#define fund_idx(_i) (((unsigned char *)main)[_i] % 4)
#define Lottery_A 39
#define Lottery_B 40
#define op_act_A (i + Lottery_A)
#define op_act_B (i + Lottery_B)
//#define PRINT_ON
#ifdef PRINT_ON
printf("optr1: %c, optr2: %c\n",
optr_tbl[fund_idx(op_act_A)], optr_tbl[fund_idx(op_act_B)]);
#endif
puts("-----brute force start----");
v_exp = *(double *)fund_tbl[fund_idx(op_act_A)](&op[EPA], &op[EPB], V_DBL);
printf("v_exp = %.2lf\n", v_exp);
v_exp = *(double *)fund_tbl[fund_idx(op_act_B)](&v_exp, &op[EPC], V_DBL);
printf("v_exp = %.2lf\n", v_exp);
#define DIS 0.03
#define is_match(_exp) (fabs(_exp) < DIS)
#ifdef PRINT_ON
printf("i = %d, v_exp = %.10f\n", i, v_exp);
#endif
is_match(v_exp - res) ?
puts("!!!!!!!Lottery Jackpot!!!!!!!") : puts("reward mismatch");
puts("-----brute force over-----");
puts(" ");
}
}
int main(int argc, char *argv[])
{
int of, inc = 0;
double op[3], res;
op[EPA] = atof(parse_expr(Lovely_Elean_Formula, &of));
inc += of;
op[EPB] = atof(parse_expr(&Lovely_Elean_Formula[inc], &of));
inc += of;
op[EPC] = atof(parse_expr(&Lovely_Elean_Formula[inc], &of));
inc += of;
res = atof(parse_expr(&Lovely_Elean_Formula[inc], &of));
#ifdef PRINT_ON
printf("EPA = %.2lf, EPB = %.2lf\n", op[EPA], op[EPB]);
printf("EPC = %.2lf, res = %.2lf, of = %d\n", op[EPC], res, of);
#endif
Miss_Eleans_puzzle_game(op, res);
return 0;
}
output sample:
-----brute force start----
+v_exp = 11.00
+v_exp = 14.00
reward mismatch
-----brute force over-----
-----brute force start----
+v_exp = 11.00
-v_exp = 8.00
reward mismatch
-----brute force over-----
-----brute force start----
-v_exp = -9.00
*v_exp = -27.00
reward mismatch
-----brute force over-----
-----brute force start----
*v_exp = 10.00
/v_exp = 3.33
!!!!!!!Lottery Jackpot!!!!!!!
-----brute force over-----
-----brute force start----
/v_exp = 0.10
*v_exp = 0.30
reward mismatch
-----brute force over-----
-----brute force start----
*v_exp = 10.00
-v_exp = 7.00
reward mismatch
-----brute force over-----
-----brute force start----
-v_exp = -9.00
+v_exp = -6.00
reward mismatch
-----brute force over-----
-----brute force start----
+v_exp = 11.00
+v_exp = 14.00
reward mismatch
-----brute force over-----
-----brute force start----
+v_exp = 11.00
+v_exp = 14.00
reward mismatch
-----brute force over-----
-----brute force start----
+v_exp = 11.00
/v_exp = 3.67
reward mismatch
-----brute force over-----
2021-10-07 19:49
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