Compilare: user.cpp: In function ‘int main()’: user.cpp:80:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i>1) ^ user.cpp:99:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j>1) ^ user.cpp:118:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i<n) ^ user.cpp:137:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j<m) ^ user.cpp:159:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i>1) ^ user.cpp:178:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j>1) ^ user.cpp:197:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i<n) ^ user.cpp:216:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j<m) ^ user.cpp:12:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("delfin.in", "r", stdin); ^ user.cpp:13:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("delfin.out", "w", stdout); ^ user.cpp:14:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n);scanf("%d", &m); ^ user.cpp:14:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n);scanf("%d", &m); ^ user.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s); ^