check even-odd

evenodd.py

def main():
    filename = "guki.c"
    f = open(filename, "w")
    f.write("#include<stdio.h>\n")
    f.write("#include<stdlib.h>\n\n")
    f.write("int a(b){\n")
    f.write("    int res;\n")
    f.write("    switch(b){\n")
    i = 0
    while i < 1000:
        f.write("        case %d:\n" % i)
        if i%2 == 0:
            f.write("            res = 1;\n")
            f.write("            break;\n")
        else:
            f.write("            res = 0;\n")
            f.write("            break;\n")
        i += 1
    f.write("        default:\n")
    f.write("            printf(\"error\\n\");\n")
    f.write("            exit(-1);\n")
    f.write("    }\n")
    f.write("    return res;\n")
    f.write("}\n\n")

    f.write("int main(void){\n")
    f.write("    int n;\n")
    f.write("    while(1){\n")
    f.write("        scanf(\"%d\", &n);\n")
    f.write("        printf(\"%d\\n\", a(n));\n")
    f.write("    }\n")
    f.write("    return 0;\n")
    f.write("}\n\n")
    f.close()

if __name__ == "__main__":
    main()