Compilare: main.cpp: In function 'int main()': main.cpp:35:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < c; ++i ){ ~~^~~ main.cpp:20:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "7segmente.in", "r", stdin ); ^ main.cpp:21:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "7segmente.out", "w", stdout ); ^