Compilare: main.cpp: In function 'void comparare()': main.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(s);i++) ~^~~~~~~~~~ main.cpp:23:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=i+1;j<strlen(s);j++) ~^~~~~~~~~~ main.cpp:28:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==strlen(c)) ~^~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:12:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n", c); ^ main.cpp:13:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n", s); ^ main.cpp: In function 'int main()': main.cpp:46:38: 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); ^ main.cpp:47:40: 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); ^