Compilare: main.cpp: In function 'void caps()': main.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int i = 0; i < strlen(s); ++i) | ~~^~~~~~~~~~~ main.cpp: In function 'void next()': main.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int i = 0; i < strlen(s); ++i) | ~~^~~~~~~~~~~ main.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i = 0; i < strlen(sc); ++i) | ~~^~~~~~~~~~~~ main.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 61 | for (int i = 0; i < strlen(sc); ++i) | ~~^~~~~~~~~~~~ main.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 75 | for (int i = 0; i < strlen(s); ++i) | ~~^~~~~~~~~~~