vocale.cpp: In function 'int nrvoc(char*)': vocale.cpp:13: warning: comparison between signed and unsigned integer expressions vocale.cpp: In function 'int main()': vocale.cpp:40: warning: comparison between signed and unsigned integer expressions vocale.cpp:56: warning: comparison between signed and unsigned integer expressions vocale.cpp:31: warning: unused variable 'id' vocale.cpp:30: warning: 'ras' may be used uninitialized in this function