Compilare: main.cpp: In function 'int main()': main.cpp:18:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (j=0;j<2*n2&&x2+d2*(j+1)<=x1+d1*i;++j); ^~~ main.cpp:19:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' { ^ main.cpp:11:66: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld%lld%lld%lld%lld%lld",&x1,&d1,&n1,&x2,&d2,&n2); ^