Compilare: main.cpp: In function 'int detdif(int, int)': main.cpp:30:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l=0; l<=strlen(mat[i]); l++) ~^~~~~~~~~~~~~~~~ main.cpp:31:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<=strlen(mat[j]); k++) ~^~~~~~~~~~~~~~~~ main.cpp:36:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l=0; l<=strlen(mat[j]); l++) ~^~~~~~~~~~~~~~~~ main.cpp:37:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<=strlen(mat[i]); k++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:48:28: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10]' [-Wformat=] scanf("%s", &mat[i]); ^ main.cpp:74:34: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10]' [-Wformat=] scanf("%s", &mat[n+1]); ^ main.cpp:81:34: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10]' [-Wformat=] scanf("%s", &mat[n+2]); ^ main.cpp:140:34: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10]' [-Wformat=] scanf("%s", &mat[n+1]); ^ main.cpp:141:34: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10]' [-Wformat=] scanf("%s", &mat[n+2]); ^ main.cpp:43:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("cuvinte5.in", "r",stdin); ^ main.cpp:44:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cuvinte5.out", "w", stdout); ^ main.cpp:46:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ main.cpp:48:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", &mat[i]); ^ main.cpp:69:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &q); ^ main.cpp:71:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &k); ^ main.cpp:74:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", &mat[n+1]); ^