Compilare: main.cpp: In function 'int schimba(int&, int&)': main.cpp:48:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void solveEasy(int)': main.cpp:89:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &v) ; ^ main.cpp: In function 'int main()': main.cpp:152:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &query, &n) ; ^