Compilare: main.cpp: In function 'void solve(int)': main.cpp:36:25: warning: unused variable 'cnt' [-Wunused-variable] int poz = 1, c = 1, cnt = 0; ^~~ main.cpp: In function 'int main()': main.cpp:55:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &m); ^ main.cpp:59:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, " %c", &ch); ^