Compilare: main.cpp: In function 'void ReadInput()': main.cpp:28:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (; '0' > *p || *p > '9'; p++); ^~~ main.cpp:29:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' A[i][j] = val; ^ main.cpp:16:6: warning: unused variable 'i' [-Wunused-variable] int i, j; ^ main.cpp:16:9: warning: unused variable 'j' [-Wunused-variable] int i, j; ^ main.cpp:18:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bemo.in", "r", stdin); ^ main.cpp:19:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &M, &N); ^ main.cpp:21:33: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(tmp, 65536, stdin); ^ main.cpp: In function 'void WriteOutput()': main.cpp:92:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bemo.out", "w", stdout); ^