Compilare: user.cpp: In function ‘int main()’: user.cpp:25:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < strlen(str2); i++) ^ user.cpp:31:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < strlen(str1); j++) ^ user.cpp:39:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j==strlen(str1)){ ^ user.cpp:17:6: warning: variable ‘count2’ set but not used [-Wunused-but-set-variable] int count2 = 0; ^ user.cpp:9:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.cpp:10:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^ user.cpp:20:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s %s", str1, str2); ^