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#include <stdlib.h>
#include <stdio.h>
int main(int argc, char** argv) {
if (argc < 2)
return 1;
FILE* file = fopen(argv[1], "r");
fseek(file, 0, SEEK_END);
int flen = ftell(file) / 4;
fseek(file, 0, SEEK_SET);
int* mem = calloc(flen, sizeof(int));
fread(mem, sizeof(int), flen, file);
fclose(file);
int a, b, c;
int pc = 0;
while (pc >= 0) {
a = mem[pc];
b = mem[pc + 1];
c = mem[pc + 2];
if (a < 0 || b < 0)
pc = -1;
else {
mem[b] = mem[b] - mem[a];
if (mem[b] > 0)
pc += 3;
else
pc = c;
}
}
file = fopen(argv[1], "w");
fwrite(mem, sizeof(int), flen, file);
fflush(file);
fclose(file);
free(mem);
return 0;
}
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