Compilare: main.cpp: In function 'void cerinta1()': main.cpp:22:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("casa.out", "w", stdout); ^ main.cpp:24:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^ main.cpp:31:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %c", &cam, &dir); ^ main.cpp: In function 'void cerinta2()': main.cpp:72:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("casa.out", "w", stdout); ^ main.cpp:77:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &N, &M); ^ main.cpp:83:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^ main.cpp: In function 'int main()': main.cpp:126:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &cerinta); ^ main.cpp: In function 'void cerinta1()': main.cpp:47:14: warning: 'ymin' may be used uninitialized in this function [-Wmaybe-uninitialized] ymin = 1 - ymin; ~~^~~~~~ main.cpp:46:14: warning: 'xmin' may be used uninitialized in this function [-Wmaybe-uninitialized] xmin = 1 - xmin; ~~^~~~~~