Compilare: main.cpp: In function 'int main()': main.cpp:130:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < skr.size() && x > 1){ ~~^~~~~~~~~~~~ main.cpp:134:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j < skr.size() && skr[j].first == skr[i].first) ++j; ~~^~~~~~~~~~~~ main.cpp:146:47: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d\n", (1LL * Sol * inm) % MOD); ^ main.cpp: In function 'void read()': main.cpp:9:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:12:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &val[i]); ^ main.cpp:18:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ main.cpp: In function 'int main()': main.cpp:104:45: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("palatulvoltaic.in", "r", stdin); ^ main.cpp:105:47: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("palatulvoltaic.out", "w", stdout); ^