Compilare: main.cpp: In function 'int main()': main.cpp:18:22: 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:19:28: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(int j = i+1; j < strlen(s); j++) | ~~^~~~~~~~~~~ main.cpp:20:30: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int l = 1; l <= strlen(s)-j; l++) | ~~^~~~~~~~~~~~~~