Compilare: user.cpp: In function ‘void citire()’: user.cpp:26:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<strlen(v); j++) ^ user.cpp:24:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(v); ^ user.cpp: In function ‘int main()’: user.cpp:127:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.in", "r", stdin); ^ user.cpp:128:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.out", "w", stdout); ^ user.cpp:132:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n", &n, &m); ^ /tmp/ccbkSYGU.o: In function `citire()': user.cpp:(.text+0x30): warning: the `gets' function is dangerous and should not be used.