Compilare: main.cpp: In function 'int main()': main.cpp:46:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < strlen(B)) { ~~^~~~~~~~~~~ main.cpp:51:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == strlen(A)) { ~~^~~~~~~~~~~~ main.cpp:56:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (i < strlen(B) && A[j] != B[i]) { ~~^~~~~~~~~~~ main.cpp:65:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < min(ind.size(), 1000); i++) { ^ main.cpp:33:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "rt", stdin); ^ main.cpp:34:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "wt", stdout); ^ main.cpp:35:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s %s", A, B); ^