Compilare: main.cpp: In function 'int main()': main.cpp:45:31: warning: unused variable 's1' [-Wunused-variable] int k, l1, c1, l2, c2, cul, s1, s2; ^~ main.cpp:45:35: warning: unused variable 's2' [-Wunused-variable] int k, l1, c1, l2, c2, cul, s1, s2; ^~ main.cpp:35:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tablou.in", "r", stdin); ^ main.cpp:36:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tablou.out", "w", stdout); ^ main.cpp: In function 'char readch()': main.cpp:11:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(s, BUFF, 1, stdin); ^