Borderou de evaluare (job #736644)

Compilare: main.cpp: In function 'int main()': main.cpp:86:13: warning: unused variable 'nr' [-Wunused-variable] 86 | int nr, i; | ^~ main.cpp:86:17: warning: unused variable 'i' [-Wunused-variable] 86 | int nr, i; | ^ main.cpp:137:13: warning: unused variable 'sol' [-Wunused-variable] 137 | int sol = 0, no_groups = 0; | ^~~ main.cpp:78:9: warning: variable 'n' set but not used [-Wunused-but-set-variable] 78 | int n, c; | ^ main.cpp:79:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 79 | freopen("controlnode.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:80:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 80 | freopen("controlnode.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:81:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 81 | scanf("%d\n", &c); | ~~~~~^~~~~~~~~~~~ main.cpp:82:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 82 | scanf("%s", s); | ~~~~~^~~~~~~~~ main.cpp:103:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 103 | scanf("%s", s); | ~~~~~^~~~~~~~~