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#if !defined(MATH_H)
#define MATH_H
#include <stdint.h>
extern int abs(int n);
extern long labs(long n);
extern long long llabs(long long n);
extern intmax_t imaxabs(intmax_t n);
extern float fabsf(float n);
extern double fabs(double n);
extern long double fabsl(long double n);
#if __STDC_HOSTED__ == 1
#include <inttypes.h>
#include <stdlib.h>
#else
typedef struct {
int quot, rem;
} div_t;
typedef struct {
long quot, rem;
} ldiv_t;
typedef struct {
long long quot, rem;
} lldiv_t;
typedef struct {
intmax_t quot, rem;
} imaxdiv_t;
#endif
extern div_t div(int numerator, int denominator);
extern ldiv_t ldiv(long numerator, long denominator);
extern lldiv_t lldiv(long long numerator, long long denominator);
extern imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator);
#endif
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