Compilare: main.cpp: In function 'int main()': main.cpp:30:19: warning: unused variable 'ans' [-Wunused-variable] int mini, p, l, ans; ^~~ main.cpp:24:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sir9.in", "r", stdin); ^ main.cpp:25:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sir9.out", "w", stdout); ^ main.cpp:26:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ main.cpp:28:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c\n", &s[i]); ^