Compilare: main.cpp: In function 'char getchar(int)': main.cpp:12:22: warning: unused variable 'c' [-Wunused-variable] int l, i, gasit, c; ^ main.cpp: In function 'int main()': main.cpp:36:15: warning: unused variable 'j' [-Wunused-variable] int t, i, j, n, ok , k; ^ main.cpp:34:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("laundering.in", "r", stdin); ^ main.cpp:35:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("laundering.out", "w", stdout); ^ main.cpp:37:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &t); ^ main.cpp: In function 'char getchar(int)': main.cpp:31:1: warning: control reaches end of non-void function [-Wreturn-type] } ^