Compilare: main.cpp: In function 'int main()': main.cpp:18:24: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 18 | for (int i=0; i<strlen(s); i++) | ~^~~~~~~~~~ main.cpp:20:16: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 20 | if (s[i]!=' ') | ^ main.cpp:25:24: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i=0; i<strlen(t); i++) | ~^~~~~~~~~~ main.cpp:27:16: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 27 | if (t[i]!=' ') | ^