0_0_32048574_16040.cpp:4:9: error: macro names must be identifiers #define 1000010 1000000 ^ 0_0_32048574_16040.cpp: In function 'int main()': 0_0_32048574_16040.cpp:33:6: error: 'f' was not declared in this scope for(f=1;f<=t;f++){ ^